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How
to Rebuild and Improve the Cub Cadet Drive Clutch Assembly
This page was last updated 1/29/21 (Click Refresh to see changes or updates.) Optimized for 1024 x 768 screen resolution. To search for a word or phrase in any of my web sites, press CTRL and F to open the Find dialog box in your web browser. Although every effort has been taken to check the accuracy of information contained herein, I cannot assume responsibility for errors.
How to Improve the International Harvester Cub Cadet "Original" Clutch Assembly |
On the direct-drive Cub Cadet, power from the engine is through the clutch and driveshaft assembly to the transaxle and to the rear tires. If the clutch is severely worn or if stock (OEM) parts may slip and little power or torque will be transferred, especially when using the tractor for competition pulling (especially with a big engine in a fast gear), gardening or to haul heavy loads. An engine in a competition pulling tractor that's built to the max or runs at high RPM or at wide open throttle produces a lot more torque than what the engineers at Cub Cadet originally anticipated for the driveline to handle. Therefore, the clutch assembly is the weak point (and the one-piece carrier and coarse spline axles), and will need to be reinforced and built up for strength for durability and to prevent slippage. Remember: towards the end of the track, if the tires don't spin or the engine bogs down, then the clutch will slip or something elsewhere in the driveline will possibly twist or break.
Types of Clutch Assemblies -
An ordinary clutch assembly for general lawn and garden use consist of a OEM quality steel driveshaft, composite/fiber clutch disc and an OEM pressure spring. But a clutch assembly for heavy lawn and garden use consist of a heavy duty 3- or 6-pin drive plate, either a stress-proof steel or stainless steel driveshaft, either a single aftermarket composite/fiber clutch disc or a single aluminum clutch disc, and definitely a much stiffer pressure spring for placing a heavier load against the clutch disc. Also, the pressure plates will definitely need to be resurfaced until perfectly flat and trued-up in a small metal lathe to ensure that the pressure plates will adhere to the clutch disc sufficiently to prevent slippage. Because new OEM Cub Cadet pressure plates are made of stamped steel and are not machined whatsoever. This means they are not perfectly flat and they wobble from the factory when new. If used pressure plates have not been resurfaced before, then chances are, they'll still be thick enough after being resurfaced. Always remove the minimal amount of metal to retain maximum thickness so they will not warp when hot. (IMPORTANT: If you don't feel comfortable using a metal lathe, please consult a professional and experienced machinist with a lathe.) The same happens to automotive flywheels and pressure plates as the clutch disc wears. They need to be resurfaced too, when installing a new clutch disc. And the heavier or stronger the clutch assembly is, the more it will cost. By the way - if the rotating clutch parts are precision balanced, installed and adjusted correctly, the OEM Cub Cadet or aftermarket composite/fiber clutch disc setup should last a long time, a lot longer than the popular aftermarket 3 puck metallic clutch disc.
Cub Cadet made four different 3-pin clutch drive plates. The bolt-circle pattern for the three clutch disc drive pins/partially threaded studs and four mounting holes are the same for all drive plates listed below.
The first clutch drive plate
is designed for the IH-built narrow- and wide-frame Cub Cadet garden tractor
models 70, 71, 72, 73, 100, 102, 104, 106, 122, 124, 126, 86, 108 and 128
with a solid-mounted engine. It's made of flat, solid/non-flexible, 1/8"
thickness steel, with a bronze bushing (pilot bearing) pressed in the center
to support the driveshaft, and has coiled/spiral pins
to drive the clutch disc. This type of drive plate can also be used on the
Cub Cadet "Quiet Line" rubber ISO-mounted engine garden tractors (below
Ê) as long as
solid motor mounts are installed. It's Cub
Cadet part # IH-384652-R12.
Depending on the class your tractor is going to pull in and engine size/modifications, there are many variations in which clutch/driveshaft design and carrier/axles to use. Listed are the weakest to the strongest:
Using Quality Driveshaft Material Is Important!
Most driveshafts are likely to
break at the second coiled/spiral pin hole, just in front of the
clutch release/throw-out bearing. Because
that's where the most vibration usually occurs. They also break just behind
the pressure spring, in front of the
pillow block bearing, due to temporary
frame twisting (narrow frames) when pulling. If this happens, it's best to
install a split clamping/locking collar.
What mainly makes the driveshaft break at 4,000+ RPM is either...
If quality driveshaft material is used, and if the rotating parts are precision balanced and if a carrier bearing is also installed (above 4,000 RPM. The factory setting of maximum RPM for virtually all small gas engines, including all of Kohler engines is 3,600), the driveshaft could possibly last the life of the tractor. Even when used in high-performance conditions.
Remember, in the direct-drive Cub Cadet, the entire clutch/driveshaft assembly rotates the same speed as the engine. For reliability in a highly modified tractor that turns well above 4,000 RPM, the driveshaft must be made of quality, solid hardened steel that can resist torsional twist. Such as 1144 stress-proof steel, heat-treated 4140 chrome-moly steel or 304 alloy stainless steel.
Advertisement: (Prices are subject to change without notice.)
Professionally Rebuilt (or New) Drive Clutch Assemblies for IH- and MTD-Built Cub Cadet Garden Tractors. Clutch assemblies available for narrow and wide, spread frame Cub Cadet garden tractors for general yard and garden use. Parts include: New stress proof steel driveshaft, new coiled/spiral pins, new aftermarket composite/fiber clutch disc, new aftermarket throw-out bearing, reconditioned release lever, new main pressure spring, new teasing spring and protective thrust washer, and both pressure plates resurfaced and trued-up. 3-pin drive plate shown in pictures shown above not included with clutch assemblies. All clutch purchases do not include the rear round coupler or coupler arms and flex coupler. Purchase these separately, if needed. When ordering, please state model number of Cub Cadet. Core trade-in must be in rebuildable condition with very few missing or damaged parts. *The price to build or rebuild your clutch assembly depends on which parts can be reused and which new parts are installed, and the amount of machining is required. IMPORTANT: Before reinstalling the driveshaft/clutch assembly in the tractor, apply automotive lubricating grease to inside the pilot bushing and/or on the front of the driveshaft. Because if either is dry, chances are, the driveshaft can bind up in the bushing, the clutch may not release, and cause wear to both the bushing and driveshaft. Drive Clutch Assemblies for Cub Cadet "Original" Garden Tractor. Priced full length (without creeper drive) or short length (with creeper drive unit.) NOTE: Complete driveshaft assembly do not include the driveshaft bearing support assembly, clutch operating support, clutch shaft bearing retainer and collar, adjustment rod yoke end, clutch operating rod and transaxle input shaft coupler arm. And I due to supply and demand, do not keep complete rebuilt clutch assemblies in stock. I build them as customers order them.
Drive Clutch Assemblies for Narrow Frame Cub Cadet Garden Tractor Models 70, 71, 72, 73, 100, 102, 104, 106, 122, 124 and 126. Priced full length (without creeper drive) or short length (with creeper drive unit.) NOTE: I do not keep complete rebuilt clutch assemblies in stock. I build them as customers order them.
Drive Clutch Assemblies for Wide Frame Cub Cadet Garden Tractor Models 80, 108 and 128. Priced full length (without creeper drive) or short length (with creeper drive unit.) NOTE: I do not keep complete rebuilt clutch assemblies in stock. I build them as customers order them.
Drive Clutch Assemblies for Wide Frame Cub Cadet Garden Tractor Models 800, 1000 and 1200. Priced full length (without creeper drive) or short length (with creeper drive unit.) NOTE: I do not keep complete rebuilt clutch assemblies in stock. I build them as customers order them.
Drive Clutch Assemblies for Spread Frame Cub Cadet Garden Tractor Models 580, 582, 1250, 1450, 1650 (models with a hydrostatic disconnect attachment), 1604, 1606 and 1806. Priced full length (without creeper drive) or short length (with creeper drive unit.) NOTE: I do not keep complete rebuilt clutch assemblies in stock. I build them as customers order them.
Drive Clutch Assembly for Spread Frame Cub Cadet Garden Tractor Model 1050. Priced full length (without creeper drive) or short length (with creeper drive unit.) NOTE: I do not keep complete rebuilt clutch assemblies in stock. I build them as customers order them.
If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
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 Rebuild/Repair MTD Farm
King Model 960 Drive Clutch Assembly. Rebuild/repair service also includes
reconditioning the Peerless right angle gearbox for long service. Rebuild/repair
price varies depending on which parts needs to be replaced and/or repaired.
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 OEM
Cub Cadet 3-pin Solid Clutch Drive Plate. Designed for
IH-built Cub Cadet garden tractor models 70, 71, 72, 73, 86, 100, 102, 104,
108, 122, 124, 126 and 128 with the solid-mounted engine. These models
have the engine fastened directly to the frame with no rubber motor mounts.
If this type of drive plate is used in a Cub Cadet "Quiet Line" model 800,
1000 or 1200 with the rubber ISO-mounted engine, then a set of A-1 Miller's
solid motor mounts must also be installed,
making the clutch/driveshaft assembly rigid throughout so less wear will
occur to the clutch/driveshaft assembly. IMPORTANT: Before reinstalling
the driveshaft/clutch assembly in the tractor, apply automotive lubricating
grease to inside the pilot bushing and/or on the front of the driveshaft.
Because if either is dry, chances are, the driveshaft can bind up in the
bushing, the clutch may not release, and cause wear to both the bushing and
driveshaft.
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 Cub Cadet 3-pin
Flexible Clutch Drive Plate. Designed for IH-built Cub Cadet "Quiet
Line" models 800, 1000 and 1200, including models 1250, 1450 and 1650 with
a hydrostatic disconnect attachment. All these models have a
rubber ISO-mounted engine to reduce overall tractor
vibration for operator comfort. FYI - To maintain balance of the drive plate,
one spiral pin is longer than the other two. Do not grind down! NOTE:
If this drive plate keeps breaking just after a few years of use, then either
a new set of rubber ISO-mounts will need to be installed, or a set of A-1
Miller's solid motor mounts and a solid clutch
drive plate listed above can be installed, making the clutch/driveshaft assembly
rigid throughout so less wear will occur to the clutch assembly to lessen
chances of repeated breakage. IMPORTANT: Before reinstalling the
driveshaft/clutch assembly in the tractor, apply automotive lubricating grease
to inside the pilot bushing and/or on the front of the driveshaft. Because
if either is dry, chances are, the driveshaft can bind up in the bushing,
the clutch may not release, and cause wear to both the bushing and driveshaft.
Replaces discontinued Cub Cadet flexible drive plate part # IH-106545-C93.
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 Weld Collars on YOUR OEM
IH Cub Cadet Drive Plate. Adds approximately 85% more strength to prevent
from bending or flexing of drive plate while under severe strain. Work includes
true-up drive plate in metal lathe to remove wobble or run-out to reduce
vibration. I can also do this to repair a customer's drive plate, as part
of the clutch rebuild. IMPORTANT: Before reinstalling the driveshaft/clutch
assembly in the tractor, apply automotive lubricating grease to inside the
pilot bushing and/or on the front of the driveshaft. Because if either is
dry, chances are, the driveshaft can bind up in the bushing, the clutch may
not release, and cause wear to both the bushing and driveshaft. An
original, ingenious and innovative concept by Brian Miller, because nobody
else advertise this type of service.
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 Repair your OEM IH Cub
Cadet garden tractor 3-pin clutch drive plate when the three OEM drive pin
collar(s) are broken off with three or six hardened steel drive studs. No
need to purchase another drive plate. Work includes true-up drive plate in
metal lathe to remove wobble or run-out to reduce vibration and for precision
alignment installation of drive studs. I can also do this to repair a customer's
drive plate, as part of the clutch rebuild. IMPORTANT: Before reinstalling
the driveshaft/clutch assembly in the tractor, apply automotive lubricating
grease to inside the pilot bushing and/or on the front of the driveshaft.
Because if either is dry, chances are, the driveshaft can bind up in the
bushing, the clutch may not release, and cause wear to both the bushing and
driveshaft. An innovative concept by Brian Miller, because nobody else advertise
this type of service.
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 Repair Over-Size Pilot Bushing
Hole in Drive Plate for Installation of OEM-size pilot bushing. No need to
purchase another drive plate. Work includes true-up drive plate in metal
lathe to remove wobble or run-out to reduce vibration. I can also do this
to repair a customer's drive plate, as part of the clutch rebuild.
IMPORTANT: Before reinstalling the driveshaft/clutch assembly in the tractor,
apply automotive lubricating grease to inside the pilot bushing and/or on
the front of the driveshaft. Because if either is dry, chances are, the
driveshaft can bind up in the bushing, the clutch may not release, and cause
wear to both the bushing and driveshaft. An innovative concept by Brian Miller,
because nobody else advertise this type of service.
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Convert your OEM IH or MTD Cub Cadet clutch drive plate from 3-pin (IH)
or 3-stud (MTD) to 3-pin/3-stud or 6-stud. Work includes true-up plate in
metal lathe to remove wobble or run-out to reduce vibration, precision drill
3 new holes in exact spacing of OEM pins or studs, and then install 3 additional
hardened steel studs, lock washers and nuts. I can also do this to repair
a customer's drive plate, as part of the clutch rebuild. NOTE: Clutch
disc must be precision-drilled with 3 additional holes to accept the 3 additional
drive studs. IMPORTANT: Before reinstalling the driveshaft/clutch assembly
in the tractor, apply automotive lubricating grease to inside the pilot bushing
and/or on the front of the driveshaft. Because if either is dry, chances
are, the driveshaft can bind up in the bushing, the clutch may not release,
and cause wear to both the bushing and driveshaft. An ingenious and innovative
concept by Brian Miller. Please accept no advertised copycat products of
this kind. (But I do appreciate them acknowledging my ingenuity and
intelligence.)  $60.00
each drive plate, includes parts and labor, plus return shipping & handling.
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  Clutch Drive Studs w/nuts and split lock washers for Cub
Cadet garden tractors.
NOTE: Adding three additional clutch drive studs is something that must be performed with precision machining. To install three additional clutch drive studs in the OEM clutch drive plate and have them perfectly aligned with the OEM drive pins and the three extra holes in the clutch disc, and to prevent the pins from being out of balance (out of circle) and to prevent wobble, the holes in the plate (and clutch disc) will need to be drilled using a Super Spacer or Rotary Table that's fastened to the table of a milling machine. Each hole must be drilled precisely at 2.5625" out from dead center and spaced exactly at 90º from the original drive pins. This will allow the 3 extra drive studs (and holes in clutch disc) to be positioned in exact alignment with the OEM pins. Just like the wheel studs on an automobile. If you want, I can professionally install three extra drive studs in your clutch drive plate and drill three extra matching holes in your clutch disc for $45.00 labor, which includes the 3 drive studs, plus return shipping. I will need your clutch drive plate and clutch disc, too. |
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 Driveshafts
for IH Cub Cadet "Original" Garden Tractor. NOTE: These
driveshafts, with the OEM factory designed machined-down 3/8" diameter support
end, are originally used with Cub Cadet coupler arm with the 25/64" center
hole (part # 759-3009). But with a 5/8" diameter
support end (A-1 Miller's improved design), the driveshaft can be used instead
with Cub Cadet coupler arm with the 5/8" center hole (part
# 748-3001). Due to the increase in material, less wear will occur to
the end of the driveshaft and hole in the coupler arm. Available
only in 1144 Stress Proof steel. (95,000 P.S.I. strength.) Not available
in stainless steel. Please indicate with 3/8" or 5/8" stub end.
Driveshafts comes with flat steel coupler arm welded to shaft and coiled/spiral
pin holes drilled. Coiled/Spiral
pins listed below.
Driveshafts for Hydrostatic Drive MTD-built Cub Cadet Models 1872 and 2072. (Stress proof steel only.) Coiled/Spiral pins listed below.
Please contact A-1 Miller's if you're interested in purchasing any of the parts or items in this website. If you need a part or parts that's not listed in this website, please contact A-1 Miller's and we'll see if we can get it at a reasonable price. | [Top of Page]
3/16" Diameter Heavy Duty Coiled/Spiral Pins for IH Cub Cadet "Original" garden tractor driveshaft. 3,100 P.S.I. breaking strength.
1/4" Diameter Heavy Duty Coiled/Spiral Pins for all other models of Cub Cadet garden tractor driveshafts. 6,500 P.S.I. breaking strength.
3/8" Diameter x 1-1/2" Length Heavy Duty Coiled/Spiral Pins for OEM Cub Cadet 3-pin clutch drive plate and drag link steering arm on all narrow frame Cub Cadets, and driveshaft for Cub Cadet garden tractor models 1872 and 2072. 12,600 P.S.I. breaking strength. NOTE: The holes in the drag link arm and spindle shaft may need to be drilled (enlarged) exactly to 3/8" (.375") for this pin to fit snug. $3.00 each, plus shipping & handling. |
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Cub Cadet Hydrostatic Drive Pump Cooling Fans listed below. Replace
a nylon cooling fan with broken blade(s) or a slipping cooling fan (on the
driveshaft) to prevent overheating and burning up of the hydrostatic motor/pump.
(Be sure to clean any debris from the hydro motor/pump once a year to allow
for maximum cooling of the unit, too.) FYI - Heat radiating from the
hydrostatic motor/pump after long use when the tractor is shut down overtime
causes the nylon cooling fan on the driveshaft to harden and dry-rot, which
eventually could cause the blade(s) to break off when the tractor is in use.
Then the out-of-balance fan causes the driveshaft to wobble, which could
cause the rubber flex coupler disc(s) to wear and/or cause the bronze pilot
bushings on the ends of the shaft to wear oblong and possibly cause the
driveshaft to bend. The only way to prevent this from happening is to install
a [clockwise rotating] aluminum cooling fan of the appropriate diameter with
a fabricated hub adapter.
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How to Drill Holes for the Coiled/Spiral Pins in a Blank Driveshaft (or any shaft), the Correct Way - (Added 1/29/21) [Top of Page]
NOTE: In the event that a drilled hole in the
driveshaft (or shaft) was made slightly too large for the snug/tight fit
of a 1/4" coiled/spiral pin, then perhaps a smaller C-shaped/spring roll
pin installed inside a 1/4" C-shaped/spring pin with the gaps opposite of
each other could be used. See the drawing of this to the right. This will
expand the diameter of the roll pin to fit in the enlarged hole, and will
double the strength of the pin. Doing this would save the driveshaft and
prevent from having to acquire another blank driveshaft to drill the holes
correctly.
Use quality coiled/spiral pins in driveshafts to prevent the possibility of pin breakage. Coiled/Spiral pins are much stronger than the spring-type or C-shaped roll pins. And all Cub Cadet driveshafts require the coiled/spiral pins. Also, use a quality-made 1/4" roll-pin punch tool to remove the spiral pins. And whenever a pin is removed, one end will probably get "mushroomed" or flared out. Making reinstallation almost impossible. So before reinstalling reusable spiral pins, ground the burr off the end of it, and ground a chamfer on the end (grind to a dull point) to make the installation easier. (Remember to wear safety glasses!)
Removing Coiled/Spiral Pins -
Personally, I use 2 lb. hammer and a quality-made 1/4" coiled/spiral pin punch to drive the pins out of the driveshaft and rear rigid tubular coupler. I've had some stubborn pins before, but they've always drove out with determination, and no damage to anything (except to the pin itself). Coiled/Spiral pins can't be drilled out either because they're just as hard as a high quality drill bit. Or if the coiled/spiral pin is really stubborn, it can be heated with an oxy-acetylene torch. This will cause the spring-action or outward expansion of the pin to weaken and collapse, then it can be driven out much easier. Be careful not to melt the pin with the torch! Doing this could make it much more difficult to remove.
When to Use a Split Clamping/Locking Collar on the Driveshaft - (Updated 11/2/16)
The only reason a split
clamping/locking collar is needed behind the pressure
spring is for competition pulling and when the engine turns at high RPMs
or at wide open throttle. When a center support
pillow block bearing and brace (that's welded to the inside of the tractor
frame) is used to stabilize the driveshaft and prevent wobble at high RPMs.
The collar lessens the chance of driveshaft breakage when a hole is drilled
for the 3rd coiled/spiral pin, and when or if the driveshaft flexes under
pulling strain. If a stock engine will never turn above 4,000 RPM, then a
split clamping/locking collar shouldn't be needed on the driveshaft because
the driveshaft will not wobble as much. On a stock tractor with a 4,000±
RPM engine, instead of using a clamping/locking collar, install a thick washer
in place of the collar, with a long steel tube on the driveshaft extending
from the washer butted against the rear driveshaft coupler. A 3rd coiled/spiral
pin hole will not be required, too.
The split clamping/locking collar can also be used on front of the IH Cub Cadet "Original" driveshaft to prevent driveshaft from moving rearward when clutch pedal is depressed.
Moreover, when using a stainless steel driveshaft, due to the "slickness" and hardness of the metal, just one split clamping/locking collar may slip rearward when the clutch pedal is fully depressed. Sometimes even using two collars will slip also. So to prevent the collar(s) from slipping, install flat washers behind the collar and in front of the center support pillow block bearing and brace so the pressure will be placed against the bearing, and the bearing will hold the collar in place. And a single split clamping/locking collar will grip mild or 1144 stress proof steel with no problems. [Return to Previous Section, Paragraph or Website]
Advertisement: (Prices are subject to change without notice.)
If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
 Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
5/8" I.D. Split Clamping/Locking
Collars. With the drilled 3rd coiled/spiral pin hole not present in the
driveshaft, this part stiffens the driveshaft in the middle 100%, and it
helps prevent driveshaft breakage at 4,000 RPM (without a center pillow block
bearing and support brace installed), and when used with a center pillow
block bearing and support brace, this prevents the driveshaft from "wobbling
around", which could break at higher RPMs or at wide open throttle. Has two
Allen head screws that secures the clamp together and provide a very tight
uniform 360° grip around the driveshaft. NOTE: With a stainless steel
driveshaft, it's best to use two split clamping/locking collars or a pillow
block bearing with an eccentric locking collar (listed below) because just
one split collar might slip rearward on the hardened "slick" surface of stainless
steel when the brake/clutch pedal is depressed.
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 Driveshaft
Center Support Pillow Blocks with self-aligning 5/8" ball bearing and
high quality cast iron housing. For use in all models of IH- and MTD-built
Cub Cadet competition garden pulling tractors. Center to center of mounting
holes: 3-3/4". Use with steel support brace listed below
Ê. NOTE: Either of these are
required only for Cub Cadet competition pulling tractors with an engine that
run at high RPM or wide open throttle to stabilize driveshaft from wobbling
and prevent breakage. Install just behind main pressure spring on driveshaft.
See pictures of correct installation below.
Ê
[Return to Previous Section, Paragraph
or Website]
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Do this only if the front
axle has been moved forward -
On the narrow frame Cub Cadets, if the front axle has been
moved forward, reinforce the frame rails where the engine mounting holes
are to reduce normal high-RPM engine vibration travel that could lead to
both frame and driveshaft breakage. To do so, stiffen the frame rails where
the engine mounting bolt holes are by welding two 1/4" thick steel plates
under the frame. Longer engine mounting bolts must be used, too. The reason
for this is because when the front axle center support is moved, the remaining
frame material isn't thick enough to hold up to the engine vibration.
For the spread frame models with the ISO (rubber) motor mounts, replace the rubber mounts with a set of our solid steel motor mounts or remove the brackets and fabricate a minimum 1/4" thick plate steel, set it at the right height and weld it to the frame. But the engine mounting holes and oil drain plug hole must be properly located (centered) and drilled in the plate first. This is much easier to do on a platform work table than on the floor or ground. [Return to Previous Section, Paragraph or Website]
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How to Remove the Driveshaft/Clutch Assembly from a Cub Cadet: (This is much easier to do on a platform work table than on the floor or ground.)
The coiled/spiral pin in
the input shaft on the transaxle of a narrow frame Cub Cadet garden tractor
can be very difficult to remove and somewhat difficult to access from underneath.
Therefore, it's recommended that a 1" hole should be drilled through the
top of a short tunnel cover (center section of the tractor frame), or through
the side of a tall tunnel cover in direct alignment with the coiled/spiral
pin, then use a long 1/4" roll pin punch and medium size hammer to drive
the pin from the coupler. Don't attempt to drill-out the coiled/spiral pin.
They're just as hard as a high quality drill bit. After the pin is removed
and the clutch assembly is rebuilt, upon reinstallation in the tractor, use
a socket in the drilled hole to fasten a hardened steel 1/4" diameter
[grade 8 or Allen head] bolt in the coupler.
For cosmetic purpose, hide the
drilled hole with a 1" plastic or metal hole plug. Just push the plug in
the hole for a nice distinctive look. And sometimes when driving out
the coiled/spiral pin, the pounding will bend the input shaft in the transaxle.
If this happens, the input shaft will need to be straightened (and hope it
doesn't break later because the metal has been weakened) or a good used input
shaft will need to be installed. This is why it's highly recommended that
a hardened steel 1/4" bolt/lock nut be used in the coupler in place of the
coiled/spiral pin because if the driveshaft ever needs to be removed again,
removing a bolt/lock nut would be a lot easier than driving out a stubborn
coiled/spiral pin. Plus, it'll be easier on your nerves and on the input
shaft.
How to Disassemble the Clutch Components from the Driveshaft -
To disassemble the clutch components from the driveshaft, first place the front pressure plate hub on slightly open jaws of a bench vise, and use a quality-made 1/4" coiled/spiral pin punch and a medium size hammer to drive out the coiled/spiral pin. Then the pressure plates, clutch disc clutch release/throw-out bearing and pressure spring should all slide off the driveshaft.
Fasten the Coupler Arms Together To Make One Rigid Driveshaft Coupler -
With
solid motor mounts installed in a Cub Cadet
"Quiet Line" garden tractor that originally came with a rubber ISO-mounted
engine, the driveshaft will not be able to "move" with the engine and there'll
be less chance of clutch parts prematurely wearing or breaking. The flexible
rubber disc(s) at the end of the driveshaft will be useless too, and could
deteriorate over time. So instead of replacing the OEM coupler arms with
a machined rigid tubular coupler, make the coupler arms rigid by removing
the flexible rubber disc(s) and install a couple of 3/8" thickness spacers
for a single disc, and a couple of 3/4" thickness spacers for double
composite/fiber clutch discs, and fasten the arms together with a couple
of 3/8" diameter hardened steel bolts. (Large nuts are used as spacers in
the picture to the right.) By the way - one rubber flex disc is 3/8" thick.
This setup is just as strong as using a rigid tubular coupler, and it cost
a lot less.
If the outer parts of the
two arms don't come together or meet when the bolts are tightened (be careful
not to tighten the bolts too tight if the arms don't meet, they could break),
a couple of thin flat washers may need to be added as shims next to the spacers.
And before fastening the arms together with the spacers, first slide the
arms on the driveshaft so they'll be in perfect alignment with each other,
and tighten the bolts. See the picture to the right. Also, if you want, leave
out the 5/8" diameter [swivel/spacer] steel ball. It'll serve no purpose
when using solid motor mounts and when making
the coupler arms rigid.
FYI - Many pullers convert the hydrostatic drive Cub Cadet garden tractor models 109, 129, 149 and 169 (wide frames with a solid mounted engine) and models 1250, 1450 and 1650 (wide frames with a rubber ISO-mounted engine) into a clutch-drive tractor. All that's needed are the clutch assembly with the hanger bracket for the release lever and a complete transaxle out of a gear drive Cub Cadet garden tractor model 86, 108, 128 (wide frames with a solid mounted engine) or models 800, 1000 or 1200 (wide frames with a rubber ISO-mounted engine). A set of A-1 Miller's solid motor mounts will be also be needed if the tractor originally has the ISO rubber motor mounts. The braking mechanism, preferably the internal "wet" brake, out of a wide frame Cub Cadet will also be needed.
Do not fasten the two coupler
arms directly together on the IH Cub Cadet "Original" because the driveshaft
needs to move up or down to tighten the drive belt with the engine. Leave
the flexible rubber disc in place, even for pulling competition. Or a 5/8"
I.D. universal joint can be installed instead.
A rigid tubular rear driveshaft
coupler with a worn center can be repaired by boring out the center and
installing a press-fit steel sleeve. Then ream the sleeve to .626" for a
slip-fit on the driveshaft. Then the holes
for the coiled/spiral pins can be drilled. The boring and reaming process
should be performed on a milling machine with a self-centering 3-jaw super
spacer or in a metal lathe with a self-centering 3-jaw chuck.
(IMPORTANT: If you don't feel comfortable using
a metal lathe, please consult a professional and experienced machinist with
a lathe.)
Installing a coiled/spiral pin
in the rear of the driveshaft to connect the coupler to the input shaft on
the transaxle of a Cub Cadet can be very difficult. To make it much easier,
simply use a 1/4" grade 8 bolt instead. For strength, the shank (unthreaded
part) of the bolt needs to have full contact with the coupler and driveshaft.
And as long as the driveshaft is in correct alignment with the centerline
of the crankshaft and transaxle input shaft, with the coiled/spiral pin holes
in-line with each other, and not offset 90°, at around 4,000 RPM, this
should not cause the driveshaft to "shake around" or vibrate whatsoever.
At high RPM or at
wide
open throttle, a center support pillow
block bearing and brace should be used midway on the driveshaft.
For pulling applications, rubber motor mounts (and the flexible coupler at the rear of the driveshaft) absorbs valuable horsepower, which must be transferred to the rear tires for full power to the track. The rubber motor mounts will also cause the engine to vibrate excessively at high RPM or at wide open throttle. Plus, with normal use of the tractor, rubber motor mounts could cause the flexible 3-pin drive plate and/or the driveshaft to eventually break. If a tractor that has rubber motor mounts and a flexible coupler is going to be used for competition pulling, definitely install some metal motor mounts.
First of all, when using a milling machine, use a spotting drill bit, or use a center punch or transfer punch to locate exactly where the hole needs to be drilled to prevent the drill bit from "skating" on the surface. This will position and guide the drill bit to bore EXACTLY where the hole needs to be drilled. And due to the natural expansion of a roll, coiled or coiled/spiral pin, ALWAYS drill the hole with a drill bit that's one size smaller than the actual size for the roll, coiled or coiled/spiral pin's size, to allow for sufficient compression of the pin when installed in the hole. For example: for a 1/4" roll, coiled or coiled/spiral pin, initially drill the hole with a 15/64" drill bit (one size smaller than the 1/4" drill bit), then finish enlarging the same hole with a 1/4" drill bit. Doing this will guarantee the hole will be EXACTLY 1/4" in diameter. If the hole is initially drilled with just the 1/4" bit, chances are, this will cause the hole to be wallowed out, making it too big for the 1/4" roll, coiled or coiled/spiral pin. [Return to Previous Section, Paragraph or Website]
Advertisement: (Prices are subject to change without notice.)
| If
you would like to purchase any of the parts or services listed in this
website, and/or for FREE professional and honest technical assistance
and support, please contact: A-1 Miller's Performance Enterprises | 1501
W. Old Plank Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
|||||
| Replace Rubber ISO-Mounts With
a Set of Solid Motor Mounts in a Cub Cadet "Quiet Line" Garden Tractor to
Prevent Repeated and Costly Damage to the Clutch Components! An
original, ingenious, innovative concept invention by Brian Miller, because
I was the one who originally thought of, promoted and advertised the use
of this product. Please accept no copycat products of this kind. (But I do
appreciate them acknowledging my ingenuity and intelligence.)
Details include:
|
|||||
   Cub
Cadet "Quiet Line" Engine Mounting Rubber Snubbers/Bumpers and Rubber
ISO-Mounts. Fits Cub Cadet "Quiet Line" garden tractor models 482,
800, 1000, 1100, 1200, 1204, 1210, 1211, 1250, 1282, 1340, 1450 and 1650.
All these models have a rubber ISO-mounted engine
to reduce overall tractor vibration for operator comfort. The rubber ISO-mounts
can be adapted for use on various other makes and models of small engine
equipment to reduce engine vibration throughout the frame.
[Return to Previous Section, Paragraph
or Website]
|
|||||
 OEM-Thickness
Bronze Pilot Bushing. Fits all pre-1981 gear drive IH-built Cub Cadet garden
tractor models 70, 71, 72, 73, 86, 100, 102, 104, 106, 108, 122, 124, 126
and 128, except "Quiet Line" models. This is also the replacement bushing
for the IH Cub Cadet "Original" clutch disc/pulley. Dimensions: 5/8" I.D.
x 7/8" O.D. x 3/4" length. IMPORTANT: To prevent the replacement pilot
bushing from wearing, both pressure plates should be resurfaced and trued-up
in a metal lathe, and before reinstalling the driveshaft/clutch assembly
in the tractor, apply automotive lubricating grease inside the pilot bushing
and/or on the front of the driveshaft. Because if the bushing is dry, chances
are, the driveshaft can bind up in the bushing, the clutch may not release,
and cause wear to both the bushing and driveshaft.
|
|||||
 Thin-Wall Bronze
Pilot Bushing Insert for installing inside a worn OEM bronze pilot bushing
in all pre-1981 gear drive IH Cub Cadet garden tractor models 70, 71, 72,
73, 86, 100, 102, 104, 106, 108, 122, 124, 126 and 128, except "Quiet Line"
models. Can also be used inside the OEM bushing in the IH Cub Cadet "Original"
clutch disc/pulley. Dimensions: 5/8" I.D. x 3/4" O.D. x 3/4" length. NOTE:
Worn OEM bushing must be precision center-bored to .750" in a metal lathe
so this bushing will have a press fit. IMPORTANT: To prevent the
replacement pilot bushing from wearing, both pressure plates should be resurfaced
and trued-up in a metal lathe, and before reinstalling the driveshaft/clutch
assembly in the tractor, apply automotive lubricating grease inside the pilot
bushing and/or on the front of the driveshaft. Because if the bushing is
dry, chances are, the driveshaft can bind up in the bushing, the clutch may
not release, and cause wear to both the bushing and driveshaft.
$3.00 each, plus shipping & handling. |
|||||
  Driveshaft Tubular Couplers. OEM stock-length (replaces
Cub Cadet part # IH-394036-R1) or 3" aftermarket rigid tubular carbon steel
driveshaft one-piece rigid tubular couplers for Cub Cadet garden tractor
models 70, 71, 72, 73, 86, 100, 102, 104, 106, 108, 122, 124, 126 and 128.
For an OEM stock-length coupler, having a 2" longer than stock coupler (with
the 2" extended on the driveshaft end) will help stabilize the driveshaft
to reduce overall tractor vibration and help the coupler last longer. For
a custom-length coupler, exact locations where the coiled/spiral pin holes
need to be drilled are required. Custom-length rigid tubular driveshaft couplers,
up to 6" length are available. To find the location of the coiled/spiral
pin holes, install the driveshaft in the tractor with the engine fastened
to the frame with a couple of bolts, make sure the clutch disc is midway
on the drive pins, then measure precisely from the rear coiled/spiral pin
hole on the driveshaft to the coiled/spiral pin hole in the input shaft in
the transaxle, then add 3/4" for the overall length of the coupler. And one-piece
couplers to replace rubber flex coupler disc and coupler arms on AQS (Quiet
Line) Cub Cadet garden tractor models 800, 1000, 1050 and 1200 when using
solid motor mounts. The 800, 1000 and 1200
coupler will come with two roll pin holes for single or double rubber flex
coupler(s). NOTE: The 3" aftermarket coupler is
used only for competition pulling tractors with a shortened driveshaft so
the input shaft/pinion drive gear can be changed to vary the ground speed
of the tractor. And when ordering, please specify model of Cub Cadet, overall
length and coiled/spiral pin hole locations.
|
|||||
 Replacement
Self-Aligning Spherical Bronze Bushing w/Outer Steel Race/Retainer. Fits
pilot bushing retainers listed below and input shaft coupler arm further
listed below in Cub Cadet ISO-mount garden models 482, 580, 582, 582 Special,
680, 682, 782, 782D, 784, 800, 882, 982, 984, 1000, 1050, 1200, 1204, 1210,
1211, 1250, 1282, 1450, 1512, 1541, 1572, 1604, 1606, 1650, 1710, 1711, 1712,
1772, 1806, 1810, 1811, 1860, 1872, 1912, 1914 and 2072. Install with hammer
and socket. IMPORTANT: To prevent the replacement pilot bushing from wearing,
both pressure plates should be resurfaced and trued-up in a metal lathe,
and before reinstalling the driveshaft/clutch assembly in the tractor, apply
automotive lubricating grease inside the pilot bushing and/or on the front
of the driveshaft. Because if the bushing is dry, chances are, the driveshaft
can bind up in the bushing, the clutch may not release, and cause wear to
both the bushing and driveshaft. OEM Cub Cadet part # 941-3004.
$39.00 each, plus shipping & handling. |
|||||
 Round Retainer
with Pressed-In Self-Aligning Spherical Pilot Bushing. Fits Cub Cadet "Quiet
Line" rubber ISO-mounted engine garden tractor
models 800, 1000, 1200, 1250, 1450 and 1650. OEM Cub Cadet IH-126205-C2.
$114.00 each, plus shipping & handling.
IMPORTANT: Before reinstalling the driveshaft/clutch assembly in the tractor, apply automotive lubricating grease to inside the pilot bushing and/or on the front of the driveshaft. Because if either is dry, chances are, the driveshaft can bind up in the bushing, the clutch may not release, and cause wear to both the bushing and driveshaft. |
|||||
 Rectangular Flange
with Pressed-In Self-Aligning Spherical Bronze Pilot Bushing. Fits Cub Cadet
"Quiet Line" rubber ISO-mounted engine garden
tractor models 680, 682, 782, 784, 1204, 1210, 1211, 1250, 1282, 1450, 1541,
1650, 1710, 1711, 1712, 1810, 1811, 1812, 1860, 1872 and 2072. OEM Cub Cadet
part # 903-0204. $33.65 each, plus shipping & handling.
IMPORTANT: Before reinstalling the driveshaft/clutch assembly in the tractor, apply automotive lubricating grease to inside the pilot bushing and/or on the front of the driveshaft. Because if either is dry, chances are, the driveshaft can bind up in the bushing, the clutch may not release, and cause wear to both the bushing and driveshaft. |
|||||
 Rectangular Flange
with Pressed-In Self-Aligning Spherical Bronze Pilot Bushing. Fits Cub Cadet
"Quiet Line" rubber ISO-mounted engine garden
tractor models 782D, 882, 1512, 1572 and 1772. Discontinued Cub Cadet part
# 703-0231. $45.00 each with new bushing, plus shipping & handling.
(When available.)
IMPORTANT: Before reinstalling the driveshaft/clutch assembly in the tractor, apply automotive lubricating grease to inside the pilot bushing and/or on the front of the driveshaft. Because if either is dry, chances are, the driveshaft can bind up in the bushing, the clutch may not release, and cause wear to both the bushing and driveshaft. |
|||||
IMPORTANT: Before reinstalling the driveshaft/clutch assembly in the tractor, apply automotive lubricating grease to inside the pilot bushing and/or on the front of the driveshaft. Because if either is dry, chances are, the driveshaft can bind up in the bushing, the clutch may not release, and cause wear to both the bushing and driveshaft. |
|||||
 Transaxle
Input Shaft Coupler Arm. Fits IH Cub Cadet "Original" and models 105, 107,
109, 123, 125, 127, 129, 147, 149 and 169. NOTE: This particular part
goes on the input shaft of the transaxle and not on the driveshaft. Can
also be used in a steering shaft setup of a custom-built mini-rod pulling
tractor as a type of U-joint with a maximum 35º rotational angle with
either flex coupler disc listed below. Dimensions: 25/64" bolt holes spaced
3" apart x 25/64" center pilot hole (for support end of driveshaft) x 5/8"
center hole. [Return To Previous Section,
Paragraph or Website]
|
|||||
 Driveshaft
(or Input Shaft) Coupler Arm. Fits Cub Cadet garden tractor models 482, 580,
582, 680, 682, 782, 784, 782D, 800, 882, 1000, 1050, 1100, 1200, 1204, 1210,
1211, 1250, 1282, 1450, 1512, 1541, 1604, 1650, 1710, 1711, 1712, 1806, 1810,
1811, 1812 and 1860. NOTE: This particular part goes on the driveshaft
and not on the input shaft of the transaxle. Additional Note: This part
can be substituted for the coupler arm listed above when used on the transaxle
input shaft with end of driveshaft at 5/8". Due to the increase in material,
less wear will occur to the end of the driveshaft and hole in the coupler
arm. (A-1 Miller's improved design.) Can also be used in a steering shaft
setup of a custom-built mini-rod pulling tractor as a type of U-joint with
a maximum 35º rotational angle with either rubber flex coupler disc
listed below. Dimensions: 25/64" bolt holes spaced 3" apart x 5/8" center
through-hole. [Return To Previous Section,
Paragraph or Website]
|
|||||
 Transaxle Input
Shaft Coupler Arm with Self-Aligning Spherical Bronze Bushing and
Outer Steel Race/Retainer. Each fits Cub Cadet garden tractor models 482,
580, 582, 682, 782, 782D, 800, 882, 1000, 1050, 1100, 1200, 1204, 1210, 1211,
1250, 1282, 1450, 1512, 1541, 1604, 1650, 1710, 1711, 1712, 1806, 1810, 1811,
1812 and 1860. Dimensions: bolt holes spaced 3" apart x 5/8" center through-hole.
NOTE: This particular part goes on the input shaft of the transaxle and
not on the driveshaft.
|
|||||
 Reinforced
Rubber Driveshaft Flex Coupler Disc. Designed specifically for IH Cub
Cadet "Original", and Cub Cadet hydrostatic drive models 105, 107, 109, 123,
125, 127, 129, 147, 149 and 169. Cannot be used on the Cub Cadet "Quiet Line"
models due to the small center hole. Very tough, reinforced rubber/weaved
fiber material. Allows for out-of-alignment rotation of driveshaft to prevent
damage to hydrostatic pump. Can also be used in a steering shaft setup of
a custom-built mini-rod pulling tractor as a type of U-joint with a maximum
35º rotational angle with coupler arm(s) listed above. 13/32" bolt holes
spaced 3" apart. OEM Cub Cadet part # IH-376257-R3. $35.85 each, plus
shipping & handling.
|
|||||
 Hydrostatic Drive
Hub. Fits IH Cub Cadet garden tractor models 105, 107, 109, 123, 125, 127,
129, 147, 149 and 169.
|
The main cause of breakage of the OEM Cub Cadet aluminum hub
adapter on competition pulling engines that run at wide open throttle is
using out-of-balance OEM clutch pressure plates and OEM 3-pin clutch drive
plate, and/or not installing the large flat washer under the nut or bolt
(as described below Ê). So as long as
the clutch pressure plates and 3-pin clutch drive plate are trued-up in a
unworn metal lathe to remove the run-out or wobble so they'll be precision
balanced, this hub have been known to hold up very well even in a highly
modified competition pulling tractor as long as the original 1/4" thick
x no less than 1-1/4" O.D. flat washer is installed under the flywheel nut
or bolt with hardened 1/4" bolts w/split lock washers to securely fasten
the drive plate to the hub. Otherwise, it's pretty tough.
Separate the Brake and Clutch Operations - (This have been done by many professional pullers in the past.)
Cub Cadet garden tractors that have the brakes integrated with the clutch/brake pedal, when applying the brakes on a competition pulling tractor that has an extremely stiff clutch pressure spring (on the driveshaft), great effort is required (strong leg muscles) to overcome and compress the clutch spring before the brakes can be safely applied. When rolling the tractor off a trailer, this also requires even greater effort to depress the clutch/brake pedal to apply the brakes especially by hand (and arm muscles). What can be done to change this is separate the brake(s) and the clutch operations by disconnecting the brake linkage from the clutch/brake pedal cross shaft, and fabricate a long upright lever (with an adjustable linkage) on the right side of the steering column support pedestal which can be easily and effortlessly pulled back (rearward) by hand to apply the brakes. The clutch/brake pedal will then become just a "clutch pedal," and the lever will be the "brake lever." This would make it much safer and easier to fully stop or slow the tractor down a steep hill or when unloading the tractor down the ramp(s) of a utility trailer or platform work table than on the floor or ground. Also, a "parking brake" lock mechanism can be installed on the brake lever-to-tractor frame to securely lock the brakes in position to prevent the tractor from rolling or coasting when the tractor is out of gear and the engine running.
If an OEM 3-pin clutch drive
plate is bent next to the drive studs (MTD) or coiled/spiral pin collars
(IH), to fix this:
If the bronze pilot bushing in a drive plate is excessively worn, this means that the pressure plates are badly out of balance and/or there was no lubricating grease applied to the bushing or on the driveshaft before installation of the clutch assembly in the tractor. In either case, resurface the pressure plates until they're perfectly flat and true-up the edge to prevent wobble in a metal lathe. IMPORTANT: To ensure true flatness when resurfacing pressure plates, use a lathe that's in good condition with very little wear on the ways! (IMPORTANT: If you don't feel comfortable using a metal lathe, please consult a professional and experienced machinist with a lathe.)
Advertisement: (Prices are subject to change without notice.)
| If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
 Extra Thick Flywheel / Aluminum
Hub Adapter Retaining Washers. A must to secure flywheel and prevent OEM
Cub Cadet or billet aluminum hub adapter breakage. Each made of steel and
measures approximately 1/4" thick x 1-1/4" O.D.
|
 Step Washer. Use to center
cast aluminum or billet hub adapter with a 5/8" hole to a crankshaft with
the 3/8" bolt on later model Kohler K-series and all Magnum engines. A must
to prevent severe wobble/vibration and prevent hub and/or driveshaft/clutch
breakage. Dimensions: 3/8" I.D. x 5/8" O.D. step x approximately 1-1/4" overall
O.D. x 1/2" overall height. Professionally machined by Brian Miller.
|
Cub Cadet hub adapters with
5/8" center hole (early K-series), w/pulley, w/dowel pin.
Cub Cadet hub adapters with 3/8" center hole (later K-series, all KT-series and Magnum), w/o pulley, w/dowel pin.
|
 1/4" diameter x 3/4" length
hardened steel dowel pin for OEM and billet aluminum hub adapters. Secures
aluminum hub to flywheel to prevent slippage. Replaces Cub Cadet part # KH-X-56-7
and Kohler part # X-56-7. $1.50 each, plus shipping & handling. |
 Flywheel grass/safety steel
screen for use in IH-built Cub Cadet garden tractors with Kohler engine models
K161 and K181. 5-9/16" diameter.
|
 Flywheel grass/safety steel
screen for use in IH-built Cub Cadet garden tractors with Kohler engine models
K241 and K301. 7" diameter.
|
Resurfacing and Truing Up Worn and Warped Pressure Plates -
For any clutch disc to adhere or grip well and to prevent slippage, both pressure plates must be resurfaced until they're perfectly flat in a metal lathe. (IMPORTANT: If you don't feel comfortable using a metal lathe, please consult a professional and experienced machinist with a lathe.) The outer edge should be trued-up too, to prevent wobble, which can cause the pilot bushing to wear excessively. For a used clutch assembly, chances are, the composite/fiber clutch disc is worn to match the wear on the pressure plates. If the clutch disc is worn, but still reusable, it can be resurfaced until perfectly flat in the lathe as well. For best clutch adhesion and to lessen the chance of slippage, the clutch-to-pressure plates surface contact areas must be flat against flat for 100% contact. Because new OEM Cub Cadet pressure plates are made of stamped steel and are not machined whatsoever. This means they are not perfectly flat and they wobble from the factory. If used pressure plates have not been resurfaced before, then chances are, they'll still be thick enough after being resurfaced. Always remove the minimal amount of metal to retain maximum thickness so they will not warp when hot.
NOTE: Before reassembling the clutch assembly, apply a thin coat of automotive lubricating grease on the area of the driveshaft where the throw-out bearing and where the rear pressure plate slides back and forth. The grease will assure full clutch disengagement, lessen wear to the driveshaft, and it will prevent the rear pressure plate from sticking to the driveshaft due to rust if the tractor is stored in a damp environment. Also, while the rear pressure plate is off the driveshaft, to prevent it from binding on the 2nd coiled/spiral pin, which can prevent the clutch from disengaging, widen the slot slightly with a flat file or on the edge of the blade on a chopsaw. (Be sure to wear safety glasses!) And it'll be a good idea to drill a small hole near the center of the rear pressure plate to relieve the air that can get trapped between the pressure plates.
Advertisement: (Prices are subject to change without notice.)
| If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
| A-1 Miller's Professional Repair Service -
Replace heavily rusted/pitted pressure plate (which cannot be successfully machined without the plate being too thin) with a new plate, weld the original center hub into the new plate, and machine the new plate until perfectly flat and remove all wobble. $50.00 each for parts and labor, plus return shipping & handling.
New Rear OEM Cub Cadet Pressure Plate. (With slot for spiral pin.) OEM Cub Cadet part #'s IH-384648-R21, IH-63815-C1, 903-0213. $157.25 each, plus shipping & handling. |
Warped pressure plates will eventually allow a single or even double clutch setup to slip. They warp due to overheating when "slipping the clutch". When they get warped, they don't make full contact with the entire surface of the clutch disc. Whenever a new clutch disc is installed, rather if it's an OEM one or made of aluminum, the pressure plates should always be resurfaced until perfectly flat and trued up in a metal lathe. (IMPORTANT: If you don't feel comfortable using a metal lathe, please consult a professional and experienced machinist with a lathe.) New OEM Cub Cadet pressure plates are stamped in a press and not machined in a lathe. This means they're not as flat or turn as true as ones that's been machined in a lathe. Therefore, if new or used pressure plates are going to be used for pulling or heavy lawn and garden use, have the outer edge trued up and have the clutch contact area resurfaced until perfectly flat in a metal lathe. Because new OEM Cub Cadet pressure plates are made of stamped steel and are not machined whatsoever. This means they are not perfectly flat and they wobble from the factory. If used pressure plates have not been resurfaced before, then chances are, they'll still be thick enough after being resurfaced. Always remove the minimal amount of metal to retain maximum thickness so they will not warp when hot.
The OEM Cub Cadet pressure plates are 3/16" (.188") thick. On the average, approximately .005" of metal is removed from the face of each pressure plate after it has been resurfaced until perfectly flat. Removing this much metal will not weaken the plates whatsoever, even when used with a very stout pressure spring.
With both pressure plates properly resurfaced until perfectly flat, the OEM composite/fiber clutch, with 4-1/2" diameter pressure plates, has a total disc to plate contact area of 17.7 square inches. The aluminum disc on the other hand (as described in this web site), has a total contact area of 29.8 square inches. You may look at this disc and ask, "where's the friction material?" Well, the aluminum itself is the friction material. The aluminum disc will adhere to (grip) steel a lot better than a composite/fiber clutch disc. Both of these type of clutch types, when used with a high pressure red (800± lb.) or yellow (1,150± lb.) spring, have been proven to hold very well in heavy pulling. IMPORTANT: To ensure true flatness when resurfacing pressure plates, use a lathe that's in good condition with very little wear on the ways!
Save the Hubs!
If the discs in your pressure plates are heavily rusted, worn too thin or warped badly and resurfacing them in a lathe didn't do any good, instead of making two entirely new pressure plates, what could be done is remove the center hub from each disc with a hydraulic press and reuse the hubs to make two new pressure plates. This would save from having to fabricate a couple of new hubs.
If the center hole in the slotted hub of the rear [sliding] pressure plate is worn oblong (rare), the hole can be repaired by boring it true in a metal lathe, and a steel sleeve bushing will need to be pressed in and welded in to prevent it from coming loose, and the hole in the bushing will need to be center-bored to .626". The slot will need to be carefully ground out in the bushing to match the slot in the hub using the blade in an electric chop saw with a metal cut-off wheel. Finally, the face of the pressure plate can be resurfaced and trued-up in the metal lathe. (Remember to wear safety glasses!) (IMPORTANT: If you don't feel comfortable using a metal lathe, please consult a professional and experienced machinist with a lathe.)
Use distilled white vinegar to remove rust from inside gas tanks, tools, bolts/nuts, clutch pressure plates or virtually any steel or cast iron part: vinegar rust removal - YouTube.
If a single composite/fiber clutch disc slips in a stock competition pulling tractor, then what is required to prevent clutch slippage is to install a single piece of machined aluminum to serve as a clutch disc. With resurfaced pressure plates and a high pressure red (800± lb.) or yellow (1,150± lb.) spring, aluminum should grip and hold up well when used in a stock competition pulling tractor. By the way, the OEM sandwiched steel composite/fiber clutch disc and an aluminum clutch disc weighs almost the same; about 10.6 ounces each.
The aluminum clutch disc works best for low RPM stock engines. If an aluminum clutch disc is used, there's no need to install three extra studs in the 3-pin drive plate (see below Ê ). But definitely have both pressure plates resurfaced until perfectly flat as described above È. Depending on the size of engine and weight of tractor, the aluminum clutch disc require a tougher driveshaft along with a high pressure red (800± lb.) or yellow (1,150± lb.) spring. And it'll be a good idea to install a center support bearing (center support pillow block bearing and brace) to prevent the driveshaft from wobbling at 4,000 RPM.
The
biggest mistake a puller can make when launching a tractor is letting the
clutch out all of a sudden with the engine revved up. So when using aluminum
as a clutch disc (or any metallic clutch material), and when the tractor
is hooked to the sled, always remember to "slip" the clutch upon take-off.
To do this, first rev up the engine (a lot), then slowly ease out on the
clutch pedal. Because an
aluminum clutch
disc may not "slip" at low RPM, and because aluminum
adheres to steel very well when under pressure, if the pedal is let out all
of a sudden with the engine revved up, and if the tires don't spin, something
could break or get damaged in the drive train or transaxle. The 5/8" zinc-plated
steel split lock washer that's placed between the pressure plates will aide
greatly in smooth clutch engagement/release and it lessens the possibility
of the clutch from "grabbing" upon take-off.
Advertisement: (Prices are subject to change without notice.)
| If
you would like to purchase any of the parts or services listed in this
website, and/or for FREE professional and honest technical assistance
and support, please contact: A-1 Miller's Performance Enterprises | 1501
W. Old Plank Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
|
Drive Belt. Fits IH Cub Cadet Garden Tractor Models
482, 580, 582 Special, and 1100. This V-belt goes from the Peerless right-angle
gearbox to the Peerless transaxle.
|
|
High quality aftermarket composite/fiber material 6" O.D. clutch disc for all models of clutch-drive Cub Cadet garden tractors. Made of very tough and long-lasting material. Suitable for heavy duty yard and garden use, and competition pulling tractors. Comes with 6 drive holes; can be used with an OEM or aftermarket 3- or 6-pin/stud drive plate. Replaces Cub Cadet part # 961-3002. $40.00 each, plus shipping & handling. OEM Cub Cadet 6" O.D. clutch disc with 3 drive holes. Must be used with a 3-pin/stud drive plate. Reinforced fiber material with sandwiched steel. Listed for use in Cub Cadet garden tractor models 70, 71, 72, 73, 86, 100, 102, 104, 106, 108, 122, 124, 126, 128, 580, 582, 800, 1000, 1200, 1604 and 1606. OEM Cub Cadet part # 961-3002. $74.00 each, plus shipping & handling. OEM Cub Cadet 6-1/2" O.D. clutch disc with 3 drive holes. Must be used with a 3-pin/stud drive plate. Reinforced fiber material with sandwiched steel. Listed for use in Cub cadet models 1050, 1535 and 1806. OEM Cub Cadet part # 961-3011. $72.25 each, plus shipping & handling. [Return To Previous Section, Paragraph or Website] IMPORTANT - It is highly recommended that both pressure plates be trued-up (to reduce vibration) and resurfaced (machined) in a metal lathe to remove warpage until perfectly flat or severe clutch slippage may result! FYI - About 90% of the composite/fiber material in clutch discs will chip off were the holes are due to the following reasons:
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|
 Teasing Spring
and Protective Thrust Washer. Fits all Cub Cadet clutch drive garden tractors,
including Cub Cadet "Original" and Cub Cadet garden tractor models 1250,
1450 and 1650 equipped with a hydrostatic disconnect attachment. The protective
thrust washer goes between the rear slotted pressure plate and teasing spring.
Purpose of protective thrust washer: Each time the clutch is engaged, the
rotating motion of the throw-out bearing will sometimes cause the blunt end
of the spring to "catch" in the slot of the rear pressure plate, which twists
the spring a few thousandths of an inch. Overtime, this creates metal fatigue
in the spring and could cause it to eventually break, even with the cup/spacer
listed below. The protective thrust washer prevents this from happening.
An ingenious and innovative concept by Brian Miller. Please accept no
advertised copycat products of this kind. (But I do appreciate them acknowledging
my ingenuity and intelligence.)
FYI: There is a custom-made sleeve available from an aftermarket vendor that
goes over the teasing spring (much like the cup/spacer listed below). But
being the coils of the teasing spring does not expand outward when the clutch
is engaged, this sleeve will not prevent the spring from possibly twisting
and breaking. Therefore, it's been proven to use the protective thrust washer
instead.
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|
 Cup/Spacer for
Teasing Spring. Specifically used in Cub Cadet clutch drive garden tractor
models 580, 582, 800, 1000, 1200, 1535, 1604, 1606 and 1806, including Cub
Cadet garden tractor models 1250, 1450 and 1650 equipped with a hydrostatic
disconnect attachment. IMPORTANT: When installing this part on
the driveshaft, the wide/flared-end faces forward and the narrow end goes
against the throw-out bearing. And do not install this part in any other
model of Cub Cadet garden tractor then listed above in an attempt to prevent
the teasing spring from possibly breaking over time. (Use the protective
thrust washer listed above instead.) Doing so will position the throw-out
bearing further back on the driveshaft than in the original position and
not allow the clutch disc to either fully disengage or disengage at all.
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|
 Cup/Spacer for
Teasing Spring. Specifically used in Cub Cadet garden tractor model 1050;
2" overall length. Comes with installed grease fitting.
IMPORTANT: When installing this part on driveshaft, the wide/flared
end faces forward and the narrow end goes against the
clutch release/throw-out bearing.
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|
A-1 Miller's Original Machined Aluminum Clutch Disc Kit. Includes
6-hole aluminum clutch disc, 5/8" I.D. split lock washer (goes between pressure
plates for smooth clutch engagement and guaranteed release) and steel spacer
(replaces teaser spring). NOTE: Use only with the
red (800± lb.) or yellow (1,150± lb.)
pressure spring to prevent clutch slippage. This is an alternate and
direct replacement for the composite/fiber material
clutch disc. The steel spacer to replace the teasing spring and lock
washer placed between the pressure plates is most suitable for use with the
aluminum clutch disc. There will be no benefit if these were used with the
fiber clutch disc. Also, the lock washer works best with a red or yellow
pressure spring so the pressure plates can place maximum pressure against
the clutch disc. Made of the highest quality 6061 alloy; medium-grade
hardness aluminum available. The 1-1/8" center hole in disc is bored dead
center, and the circumference is turned true in my metal lathe, then the
6 drive holes are precision-drilled using my 8" super spacer with a 6-notch
masking plate on the table of my milling machine. Unlike some of my competitor's
copycat part, the drive holes in my aluminum clutch discs are drilled 13/32"
for minimum clutch disc noise/rattle and less chance of breakage to the drive
pins/studs. An ingenious and innovative concept by Brian Miller. Please
accept no advertised copycat products of this kind. (But I do appreciate
them acknowledging my ingenuity and intelligence.)
IMPORTANT
- It is highly recommended that both pressure plates be trued-up (to reduce
vibration) and resurfaced (machined) in a metal lathe to remove warpage until
perfectly flat or severe clutch slippage may result! Because new OEM Cub
Cadet pressure plates are made of stamped steel and are not machined whatsoever.
This means they are not perfectly flat and they wobble from the factory.
If used pressure plates have not been resurfaced before, then chances are,
they'll still be thick enough after being resurfaced. Always remove the minimal
amount of metal to retain maximum thickness so they will not warp when
hot.
CUB CADET
124 WORK PART 2 - YouTube
Please contact A-1 Miller's if you're interested in purchasing any of the parts or items in this website. If you need a part or parts that's not listed in this website, please contact A-1 Miller's and we'll see if we can get it at a reasonable price. | [Top of Page] |
|
 Clutch Disc
Anti-Rattle Spring. Reduces noisy composite/fiber or aluminum clutch disc
rattle on drive pins/studs. Although one spring may be sufficient to reduce
clutch noise, it may be necessary to install three springs (one for each
pin/stud) for 100% reduced clutch noise. Can be used on composite/fiber or
aluminum clutch discs. NOTE: Recommended for up to 4,000 RPM engines.
Not for use on high RPM or wide open throttle competition pulling tractors
due to normal engine harmonic vibrations that travels out into the clutch
assembly, this can create the possibility of the spring(s) becoming dislodged,
which could become a hazardous airborne projectile if clutch is not properly
shielded 360º. So if possible, install these springs with the coil between
the clutch disc and drive plate, opposite that is shown in the picture to
the right, to prevent them from coming off.
|
How to Get a Composite/Fiber or the Aluminum Clutch Disc to Engage Smoothly -
The OEM Cub Cadet cushion spring (as it is called in the early/narrow frame Cub Cadets) or teasing spring (as it is called in the later models/wide and spread frame Cub Cadets) goes between the rear pressure plate and clutch release/throw-out bearing. It's purpose is to allow the rear pressure plate to gently press against the clutch disc as the clutch is engaged without having a "jerky" clutch. When using an aluminum clutch disc, the teasing spring can be replaced with a steel spacer or a stack of small outside diameter flat washers (the ones that originally comes on Cub Cadet driveshafts) and an ordinary, zinc-plated steel split lock washer. Install the lock washer between the pressure plates (dead center of the clutch disc) for a smoother clutch engagement. Clutch slippage may result if used with the OEM Cub Cadet clutch pressure spring. Therefore, the aluminum clutch disc should be used with a stiffer-than-stock pressure spring, such as the high pressure red (800± lb.) or yellow (1,150± lb.) spring.
For the narrow-frame Cub Cadets,
the steel spacer needs to be 3/8" in length. (The teasing spring is compressed
to 3/8" when the clutch is fully engaged.) And for Cub Cadet garden tractor
models 86, 108, 128, 800, 1000, 1200 and 1535, the spacer needs to 5/8" length
or use the OEM protective cup/spacer (for the teasing) that originally comes
on the driveshaft, but leave the teasing spring out. By the way - the small
end of the protective cup/spacer goes against the
clutch release/throw-out bearing. If a too
long of a spacer or the protective spacer/cup is used in a narrow frame model,
the clutch release/throw-out bearing would
set too far back on the driveshaft and when the clutch/brake pedal is depressed,
the release lever will make contact with the
steering box and the clutch will not be able to release.
To prevent the teasing spring
from possibly breaking and to help the clutch(es) to engage more smoothly,
simply don't use the teasing spring. Instead, replace where the teasing spring
goes on the driveshaft with a piece of heavy wall round steel tubing that
measures 7/8" O.D. x 3/8" (narrow frame) or 5/8" (wide frame) long x 41/64"
I.D. Then install an ordinary zinc-plated 5/8" I.D. split lock washer between
the pressure plates, dead center of the clutch disc. Lock washers have a
spring-like action too, plus they'll last a lot longer than a teasing spring.
The lock washer does two things - it acts like a spring, which forces the pressure plates apart, it provides smooth clutch engagement and it'll help to prevent the possibility of the clutch disc from "grabbing" upon take-off. In addition, the spring-like action of the lock washer will expand the pressure plates when the clutch/brake pedal is fully depressed so they will release from the clutch disc. Doing this will guarantee that the clutch will engage smoothly and release every time. So when reassembling a clutch assembly, don't install the teasing spring. Instead, install the spacer and lock washer as described above È. You'll be glad you did.
Or for a bullet-proof teasing spring setup, and/or if the aluminum clutch disc doesn't engage smoothly, instead of using the 5/8" lock washer between the pressure plates and the teasing spring or a steel spacer, install a flat washer, the 5/8" lock washer, then another flat washer until they all total to about 3/8" or 5/8" in height with the lock washer fully uncompressed.
The correct order of installing Cub Cadet clutch parts on the driveshaft is listed below Ê. NOTE: Before reassembling the clutch assembly, apply a thin coat of automotive lubricating grease on the area of the driveshaft where the throw-out bearing and where the rear pressure plate slides back and forth. The grease will assure full clutch disengagement, lessen wear to the driveshaft, and it will prevent the rear pressure plate from sticking to the driveshaft due to rust if the tractor is stored in a damp environment. Also, while the rear pressure plate is off the driveshaft, to prevent it from binding on the 2nd coiled/spiral pin, which can prevent the clutch from disengaging, widen the slot slightly with a flat file or on the edge of the blade on a chopsaw. (Be sure to wear safety glasses!) And it'll be a good idea to drill a small hole near the center of the rear pressure plate to relieve the air that can get trapped between the pressure plates.
| 1. Install 3rd coiled/spiral pin then the main
pressure spring. 2. Install clutch release/throw-out bearing (small end facing forward of tractor). 3. Install release lever . 4. Install protective spacer/cup (small end goes against clutch release/throw-out bearing). 5. Install teasing spring or steel spacer. |
6. Compress the pressure spring and install the 2nd coiled/spiral
pin. 7. Install pressure plate w/slotted hub. 8. Install zinc-plated steel split lock washer (use only with very stiff pressure spring). 9. Install clutch disc. 10. Install pressure plate w/solid hub, then the 1st coiled/spiral pin. |
How to Replace a Broken Teasing Spring on a Cub Cadet Driveshaft (with the driveshaft in the tractor) - (Added 8/28/17)
To disassemble the clutch components from the driveshaft, this is how I do it:
For safety, a
hydraulic press should be used to compress the large pressure
spring on the driveshaft to reassemble the clutch components!
To test how well the clutch will release out of the tractor, place the clutch assembly in the hydraulic press with each end of the release lever on a couple of blocks, and apply slight downward pressure on the end of the driveshaft. The clutch disc should rotate or "move around" freely without binding. If the disc doesn't rotate or binds, redo your work to find out what went wrong.
How to Fix a "Sticking" Cub Cadet Clutch (when it will not release) -
Before reassembling the clutch assembly, apply a thin coat of automotive lubricating grease on the area of the driveshaft where the throw-out bearing and where the rear pressure plate slides back and forth. The grease will assure full clutch disengagement, lessen wear to the driveshaft, and it will prevent the rear pressure plate from sticking to the driveshaft due to rust if the tractor is stored in a damp environment. Also, while the rear pressure plate is off the driveshaft, to prevent it from binding on the 2nd coiled/spiral pin, which can prevent the clutch from disengaging, widen the slot slightly with a flat file or on the edge of the blade on a chopsaw. (Be sure to wear safety glasses!) And it'll be a good idea to drill a small hole near the center of the rear pressure plate to relieve the air that can get trapped between the pressure plates.
The Much Over-Looked Clutch Release Lever Clevis Pin -
If the straight 3/8" diameter
OEM Cub Cadet
clevis pin that goes through the clutch hanger bracket
and release lever is worn, this part should be
replaced with an angled or L-shaped pivot pin. As the engine runs with the
clutch fully engaged (foot off the clutch pedal, of course), due to normal
engine vibration and slight out-of-balance rotating clutch parts, the OEM
round pin continually spins, causing the pin itself and the holes in the
hanger bracket to wear. The holes in the release
lever rarely wear because the entire lever is made of hardened, heat-treated
steel. By replacing the round pin with an angled pin (with the short end
long enough to make contact with the tractor frame or hanger bracket), it
can't spin. Therefore, there'll be much less wear on the pin and holes, the
clutch release/throw-out bearing will last
longer, there'll be less noise coming from the clutch parts, clutch operation
will be smoother, and clutch adjustment will remain the same for a longer
time. (I think the engineers at IH Cub Cadet should have originally installed
an angled pin in their tractors. But then again, they probably didn't plan
on their tractors being in use 40-50 years later.)
Advertisement: (Prices are subject to change without notice.)
| If
you would like to purchase any of the parts or services listed in this
website, and/or for FREE professional and honest technical assistance
and support, please contact: A-1 Miller's Performance Enterprises | 1501
W. Old Plank Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
|||
Pivot and Clevis
Pins for Cub Cadet garden tractor clutch release
lever bracket. This is an alternative to using the OEM straight clevis
pin or a grade 8 bolt and lock nut. The angled/L-shaped pin prevents the
holes in the release lever and hanger bracket
from wearing oblong due to constant spinning of the OEM straight clevis pin
while the tractor is in operation. The angled/L-shaped pin lessens clutch
noise, reduces erratic clutch pedal operation, maintains clutch adjustment
and allows for smoother clutch operation. Each made of 3/8" diameter mild
steel. For clutch drive Cub Cadet models: 70, 71, 72, 73, 86, 100, 102, 104,
106, 108, 122, 124, 126, 128, 580, 582, 800, 1000, 1050, 1200, 1604, 1606
and 1806. The angled/L-shaped pin is an ingenious and innovative concept
by Brian Miller. Please accept no advertised copycat products of this kind.
(But I do appreciate them acknowledging my ingenuity and intelligence.)
|
|||
 New
clutch hanger bracket for narrow frame clutch drive IH Cub Cadet garden tractor
models 70, 71, 72, 73, 100, 102, 104, 106, 122, 124 and 126.
|
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 New
clutch hanger bracket for wide frame clutch drive IH Cub Cadet garden tractor
models 86, 108, 128, 800, 1000 and 1200. Also for models 1250, 1450 and 1650
with a hydrostatic disconnect attachment.
A-1 Miller's Professional Repair Service - Weld up worn and oblong clutch release lever pivot pin holes, redrill holes and grind smooth for your hanger bracket. $30.00 labor, plus return shipping & handling. |
|||
 New
clutch hanger bracket for spread frame clutch drive, IH- or MTD-built Cub
Cadet garden tractor models 580, 582, 1050, 1604, 1606 and 1806. May also
fit model 1535. Requires clevis pin w/cotter pin.
A-1 Miller's Professional Repair Service - Weld up worn and oblong clutch release lever pivot pin holes, redrill holes and grind smooth for your hanger bracket. $30.00 labor, plus return shipping & handling. |
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Clutch hanger bracket for spread frame clutch drive MTD-built Cub Cadet garden
tractor model 1535. May also fit models 580, 582, 1050, 1604, 1606 and 1806.
Requires shoulder bolt w/locknut.
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Clutch Release Lever for all narrow frame clutch drive Cub Cadet garden
tractor models 70, 71, 72, 73, 100, 102, 104, 106, 122, 124 and 126. 7-7/8"
overall length. Replaces discontinued Cub Cadet part # IH-384657-R5.
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 Clutch Release
Levers. Fits Cub Cadet garden tractor models 86, 108 and 128. Can also be
used for models 800, 1000 and 1200 with solid
motor mounts. Stock 8-1/4" overall length.
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 Clutch Release
Levers. Fits Cub Cadet garden tractor models 800, 1000 and 1200. Can also
can be used for models 86, 108 and 128 with no modifications. Also fits models
1250, 1450 and 1650 with a hydrostatic disconnect attachment. Stock 8-1/4"
overall length.
|
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 Clutch Release
Levers. Fits all spread frame IH- and MTD-built Cub Cadet garden tractor
models 580, 582, 1050, 1535, 1604, 1606 and 1806. Stock 9-3/4" overall length.
|
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 Clutch
Adjustment/Release Rod. Fits IH Cub Cadet "Original".
|
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 Nylon Insert
Self-Locking Nut for 3/8" diameter threaded L-shaped clutch adjustment/release
rods listed above. Replace OEM adjusting nut with worn threads to maintain
correct clutch adjustment on virtually all clutch drive Cub Cadet garden
tractors. Grade 8 material with 3/8-24 UNF threads. NOTE: Use a (9/16"
size) boxed-in ratcheting wrench (below) for easier and precise clutch
adjustment.
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 Clutch Release
Tension Compression Spring for All Models of Cub Cadet Clutch Drive Garden
Tractors. Slips over threaded end of 3/8" diameter L-shaped clutch
release/adjustment rods listed above. Necessary to maintain correct clutch
adjustment and reduce clutch noise/rattle.
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 Clutch
Pedal Return Springs. 2-1/2" unextended length between hooks. Fits Cub
Cadet garden tractor models 70, 71, 72, 100, 102, 104, 105, 122, 123, 124
and 125. A must for clutch-drive Cub Cadet garden tractors to prevent premature
wear to clutch release/throw-out bearing
and clutch release lever, and to prevent annoying
rattling sound when the
clearance between the
throw-out bearing and release lever is adjusted corrected correctly.
|
How to Save a Used Clutch Release/Throw-Out Bearing - An ingenious
and innovative concept by Brian Miller, because nobody else advertise this.
If
a used clutch release/throw-out bearing is
still pretty much "tight," but sounds noisy or "rattles" when you spin it
by hand, it could be saved from further wear by pumping it full of automotive
lubricating grease. The same can be done to a new bearing to ensure that
it will last a long time. (I've done this many times when I rebuild clutch
assemblies and have never had one complaint!) The fresh grease will help
keep the balls within the bearing well-lubricated and cool, preventing them
from further wear. But if the bearing is badly worn or if you're in doubt
about doing this, then perhaps install a new one. (Cub Cadet part # 741-3056)
When assembling the clutch
components, never install the clutch release/throw-out bearing on the
driveshaft backwards! Install it with the collar (the center part that
sticks out) towards the clutch disc.
How to save a used clutch release/throw-out bearing:
Using either a
needle grease injector (resembles a hypodermic syringe
that attaches to an
automotive grease gun) or a
chainsaw bar tip grease gun, pump the bearing through the
drilled hole until it's full of automotive lubricating grease. Rotate the
bearing 180º and pump it again. It's full when the grease starts to
ooze out of the dust seals.
The same procedure mentioned above È can be done to many types of used precision, high-speed sealed roller bearings, besides just clutch release/throw-out bearings. And for anyone who's ever wondered about this, when the clutch/brake pedal is fully depressed, the clutch release/throw-out bearing moves back 3/8" on the driveshaft.
Advertisement: (Prices are subject to change without notice.)
| If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
Teasing Spring and Protective
Thrust Washer. Fits all Cub Cadet clutch drive garden tractors, including
Cub Cadet "Original" and Cub Cadet garden tractor models 1250, 1450 and 1650
equipped with a hydrostatic disconnect attachment. The protective thrust
washer goes between the rear slotted pressure plate and teasing spring. Purpose
of protective thrust washer: Each time the clutch is engaged, the rotating
motion of the throw-out bearing will sometimes cause the blunt end of the
spring to "catch" in the slot of the rear pressure plate, which twists the
spring a few thousandths of an inch. Overtime, this creates metal fatigue
in the spring and could cause it to eventually break, even with the cup/spacer
listed below. The protective thrust washer prevents this from happening.
An ingenious and innovative concept by Brian Miller. Please accept no
advertised copycat products of this kind. (But I do appreciate them acknowledging
my ingenuity and intelligence.)
FYI: There is a custom-made sleeve available from an aftermarket vendor online
that goes over the teasing spring (much like the cup/spacer listed below).
But being the coils of the teasing spring does not expand outward when the
clutch is engaged, this sleeve will not prevent the spring from possibly
twisting and breaking. Therefore, it's been proven to use the protective
thrust washer instead.
|
Cup/Spacer for Teasing
Spring. Specifically used in Cub Cadet clutch drive garden tractor models
580, 582, 800, 1000, 1200, 1535, 1604, 1606 and 1806, including Cub Cadet
garden tractor models 1250, 1450 and 1650 equipped with a hydrostatic disconnect
attachment. Overall length: .605". IMPORTANT: When installing this
part on the driveshaft, the wide/flared-end faces forward and the narrow
end goes against the throw-out bearing. And do not install this part in any
other model of Cub Cadet garden tractor then listed above in an attempt to
prevent the teasing spring from possibly breaking over time. (Use the protective
thrust washer listed above instead.) Doing so will position the throw-out
bearing further back on the driveshaft than in the original position and
not allow the clutch disc to either fully disengage or disengage at all.
|
 Clutch Release/Throw-Out
Bearings for all narrow frame IH Cub Cadet garden tractor models 70, 71,
72, 73, 100, 102, 104, 106, 122, 124 and 126. Bearing dimensions: 5/8" I.D.
x 1.570" O.D. NOTE: The protruding center part of the bearing faces forward
in the tractor, toward the engine.
|
 Zerk
Grease Fittings. Use a 1/4-28 UNF hand tap to cut new threads for
installation of a new fitting.
Click or tap here
to learn how to cut new threads, the professional way.
|
The Clutch Pedal Return Spring and Maintaining Proper Clutch Adjustment -
Install the clutch pedal return spring to prevent from wearing
both the clutch release/throw-out bearing
and release lever. Don't just install a cotter
pin in place of it. A pedal return spring is a short, very stiff, expansion
spring with a hook on each end. The size is approximately 3/4" diameter x
2-1/8" in overall length. And do not "ride the clutch"! Take your foot
off the clutch pedal when the tractor is in motion.
The return spring connects from the hole in the end of the clutch adjustment/release rod to a hole in the cross member that's in the tractor's frame. Install one end of the spring in the linkage first, then install the other end in the cross member. NOTE: It may be difficult to get the end of the spring in the hole because of the tension, but it can be done and it MUST be done. (I do it all the time with our muscles, Vise Grips and a little leverage from our trusty small pry bar.)
If a pedal return spring is not installed or if the operator "rides the clutch" when pulling or when the tractor is in operation (keeping one's foot on the clutch pedal at all times), this will cause the clutch release/throw-out bearing to spin the same speed as the engine, wearing it out prematurely. This will also wear the release lever as well. So making the proper adjustment and not "riding the clutch" will help the clutch release/throw-out bearing last a very long time. The return spring connects from the hole in the end of the clutch adjustment/release rod to a hole in the cross member in the tractor's frame. NOTE: It may be somewhat difficult to get the end of the spring in the hole because of the tension, but it can be done, and it must be done. (I do it all the time with our Vise Grips and a little leverage from our trusty small pry bar.)
How to Set the Correct Cub Cadet Drive Clutch Adjustment -
When the clutch/brake pedal
is fully disengaged (not depressed), no part of the
clutch release/throw-out bearing is supposed
to make contact with the clutch release lever.
Otherwise, the clutch
release/throw-out bearing will turn the same RPM as the engine. If
these continually make contact with the engine running and while the tractor
is in motion, the driveshaft will continually spin the
throw-out bearing, causing it to overheat
and eventually burn-out, and the contact area on the
release lever will likely to wear excessively.
The excessive heat from the overheated throw-out bearing could travel into
and weaken (damage) the front end of the main pressure spring too, making
it place less pressure against the clutch disc. This will occur with ordinary
lawn and garden, and competition pulling tractors alike. Therefore, to determine
the proper clearance and adjust for the "safe" distance between the
throw-out
bearing and release lever, with the
clutch/brake pedal fully disengaged (not depressed) and the clutch/brake
pedal arm against the pedal stop, which is a small angled steel spot-welded
to the tractor frame, and with a pedal return spring installed, adjust the
self-locking nut on the L-shaped clutch adjustment/release rod (that's on
the lower part of the release lever) until there's
approximately 9/32" - 5/16" of clearance between the pedal arm and pedal
stop. This will allow for .050" - .060" (approximately 1/16") of clearance
between the throw-out
bearing and release lever.
Use a
9/16" size boxed-in ratcheting wrench to
make the Cub Cadet clutch adjustment much easier. And an accurate way to
check for the correct clearance between the clutch
release/throw-out bearing and clutch release
lever is to use a 7mm or 5/16" rod or square stock as a thickness gauge.
When the self-locking nut on the L-shaped adjustment/release rod is turned
clockwise (when facing the front of the tractor), this decreases the clearance,
and when the nut is turned counterclockwise, this increases the clearance.
Also, if a tractor doesn't already have one, definitely install a
pedal return spring
(extension spring) of the correct length on the clutch
adjustment/release rod to the hole in the cross member that's welded between
the frame rails so pressure from the release lever
will be taken off the clutch release/throw-out
bearing when the clutch/brake pedal is fully disengaged (not depressed)
to prevent from premature and excessive wearing of the clutch release/throw-out
bearing and/or release lever.
[Return to Previous Section, Paragraph
or Website]
Information About the Clutch Main Pressure Spring -
If a light-weight tractor with a governed engine (up to 4,000 RPM) is going to be used for general yard work, it's okay to use the stock OEM Cub Cadet pressure spring with the OEM composite/fiber clutch disc. A good used stock OEM pressure spring and a new OEM spring should measure no less than 6-1/2" in uncompressed length. The maximum length is 7". But the compressed length (on the driveshaft with the clutch pedal fully depressed) is 5". If a spring has been used on a driveshaft with an overheated or burned-out clutch release/throw-out bearing, it's best to replace both. And if the pressure plates have been resurfaced until perfectly flat, but the clutch still slips in the heavier chores, perhaps a high pressure red (800± lb.) or yellow (1,150± lb.) spring may need to be installed. (See below Ê.)
If the tractor stops pulling about halfway down the track, and if the engine is still running, but the tires aren't spinning, then the clutch is slipping. For the pressure plates to grip the clutch disc(s) firmly, the pressure spring must be a very stout one. The Cub Cadet clutch pressure spring has about 250 psi of pressure and will probably not prevent the clutch from slipping in a competition pulling tractor. Therefore, a high pressure red (800± lb.) or yellow (1,150± lb.) spring works excellent with the OEM clutch disc or aluminum disc. The OEM clutch release lever may need to be extended 3" with either of these springs for easier clutch pedal depression.
How to Reinforce the Clutch Release Lever Brace on a Wide and Spread Frame Cub Cadet When Using the Yellow Spring -
Install a piece of 1/8" x 1" x (you'll need to measure the length if the transaxle have been moved rearward) flat steel from the center of the clutch release lever brace back to one of the upper bolts on the front of the transaxle. Use grade 8 bolts so it can be removed later in case of repairs. This is much easier to do on a platform work table than on the floor or ground. [Return to Previous Section, Paragraph or Website]
Advertisement: (Prices are subject to change without notice.)
| If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
 OEM
Cub Cadet Clutch Compression Springs. Suitable for general lawn and
garden work only; not recommended for competition pulling. Approximately
6-3/4" to 7" uncompressed length.
High Pressure Clutch Compression Springs; 800± lb. "Red" Spring, and 1,150± lb. "Yellow" Spring. Fits all models of clutch-drive Cub Cadet garden tractors. When installed, either spring should be compressed to 4-1/2" in length. These springs are approximately 3/4" shorter in length than the OEM spring listed above, so if using the 3rd coiled/spiral pin hole in the middle of the driveshaft at its OEM location, a 3/4" steel spacer will need to be added behind the spring so the spring so it can apply full pressure against the clutch disc. When installing either of these springs, use the original 3rd coiled/spiral pin hole location on the driveshaft, which should measure 9-1/4" - 9-3/8" from the very front of the driveshaft, or install one or two split clamping/locking collar(s) at 9-1/4" - 9-3/8" from the very front of the driveshaft with a center support pillow block bearing and brace to prevent driveshaft wobble and reduce chance of driveshaft breakage at wide open throttle operation. And depending on type of clutch disc used, the Red spring is suitable for Hot-Stock and NQS Stock-Altered tractors, and the Yellow spring is suitable for 16hp Missouri Super-Stock, Pro-Stock and Modified tractors. Ideal for use with my aluminum clutch disc setup. With either of these stiff springs, the OEM clutch release lever should be extended 3" for easier depression of the clutch/brake pedal. Dimensions of each spring: 5/8" I.D. x 1-1/4" O.D. x 6" length.
|
Advertisement: (Prices are subject to change without notice.)
| If you would
like to purchase any of the parts or services listed in this website,
and/or for FREE professional and honest technical assistance and support,
please contact: A-1 Miller's Performance Enterprises | 1501 W. Old Plank
Rd. | Columbia, MO (Missouri) 65203-9136 USA |
Phone: 1-573-256-0313 (shop)
| 1-573-881-7229 (cell; text or when leaving a voice message, please speak
slowly and clearly). Please call Monday-Friday, except holidays, 9am to 5pm,
Central time zone. If no answer, please try again later. (When speaking
with Brian, please be patient because I stutter.)
E-mail: pullingtractor@aol.com.
When you call, text, email or visit our shop, you will be dealing directly
with the owner for the best customer service. A-1 Miller's shop is open to
the public from 9am to 5pm, including weekends, except holidays. Please call
before coming so I'll be here waiting for your arrival.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can hire more help and provide many more
high quality parts and professional services.) |
| Teasing Spring. Fits all
Cub Cadet clutch drive garden tractors, including Cub Cadet "Original" and
Cub Cadet garden tractor models 1250, 1450 and 1650 equipped with a hydrostatic
disconnect attachment. Protective thrust washer not needed for the Cub Cadet
"Original". OEM Cub Cadet part # 732-3017. $6.55 each, plus shipping
& handling. |
  Spherical, Self-Aligning 5/8" I.D. Swivel Sealed Collar Bearing
with Eccentric Locking Collar for front of IH Cub Cadet "Original" driveshaft.
Reuse OEM two-bolt, two-piece stamped steel retainers. High quality aftermarket.
Replaces discontinued Cub Cadet part #'s IH-468390-R93 (collar bearing),
IH-468391-R11 (eccentric locking collar) and IH-376272-R1 (retainers).
$20.00 each, plus shipping & handling.
Spherical, Self-Aligning 5/8" I.D. Set Screw Collar Sealed Swivel Ball Bearing with two-bolt, two-piece stamped steel retainers. Retainers has 2-1/2" bolt spacing. High quality aftermarket. Replaces discontinued Cub Cadet part #'s IH-468390-R93 (collar bearing), IH-468391-R11 (eccentric locking collar) and IH-376272-R1 (retainers). $25.00 each, plus shipping & handling. |
Bronze Bushing. Fits inside
IH Cub Cadet "Original" clutch release collar housing. Grind or drill hole
in bushing to lubricate through Zerk grease
fitting. Dimensions: 1" I.D. x 1.125" O.D. x 1" length. IMPORTANT:
Lubricate the bushing and needle bearing in the clutch release collar assembly
with automotive grease before the tractor is put back into service.
|
 Needle Thrust Bearing and
Two Thrust Washers. Goes inside IH Cub Cadet "Original" clutch release collar
housing. Dimensions: 1" I.D. x 1-9/16" O.D. x .030" thickness thrust washers.
IMPORTANT: Lubricate the bushing and needle bearing in the clutch release
collar assembly with automotive grease before the tractor is put back into
service.
|
 IH Cub Cadet "Original" Clutch
Release Collar Assembly. Replace worn-beyond-reuse clutch release collar
housing. Includes clutch release collar housing, new bronze bushing and new
thrust needle bearing with two new thrust washers. Replaces discontinued
Cub Cadet part # IH-376258-R11. IMPORTANT: Lubricate the bushing and needle
bearing in the clutch release collar assembly with automotive grease before
the tractor is put back into service.
|
 A-1 Miller's Professional
Machine Services -
Repair Worn Hole in YOUR IH Cub Cadet "Original" Clutch Arm to remove excessive free play in clutch/brake pedal. (The clutch arm fastens on the clutch/brake cross shaft and rotates slightly to disengage the drive clutch when the clutch/brake pedal is depressed.) FYI - The clutch arm is discontinued Cub Cadet part # IH-376276-R1. $30.00 for labor and installation of steel bushing/sleeve, plus return shipping & handling. |
 Extra Thick Flat Washer. Used
to apply pressure against rear pressure plate in IH Cub Cadet "Original"
clutch assembly. Dimensions: 1-3/4" O.D. x approximately 5/32" thickness
x .626" center hole. Replaces discontinued Cub Cadet part # IH-25556-R1.
|
  New OEM-quality
bronze pilot bushing for all pre-1981 gear drive IH Cub Cadet, except "Quiet
Line" models. Also replacement bushing for inside the IH Cub Cadet "Original"
clutch disc/pulley. $5.00 each, plus shipping & handling.
Bore center of IH Cub Cadet "Original" clutch disc/pulley for installation
of a high quality, high-speed sealed radial ball bearing. (Intended mainly
for competition pulling tractors with an engine that runs at high RPMs or
wide open throttle.) An ingenious and innovative concept by Brian Miller.
Please accept no advertised copycat products of this kind. (But I do appreciate
them acknowledging my ingenuity and intelligence.)
Rebuild IH Cub Cadet "Original" clutch assembly to OEM specs. $75.00-$100.00 labor only, extra charge for parts, plus return shipping & handling. Labor includes: Disassemble complete unit, clean and inspect all parts, resurface both pressure plates to remove warpage and resurface composite/fiber clutch facings to restore flatness. Parts includes: New bronze bushing in clutch disc/pulley and clutch release/throw-out bearing assembly (if needed), lubricate bushings and install new coiled/spiral pins. NOTE: If you're interested in having A-1 Miller's do the work for you, please send your clutch assembly when you're ready to the address below Ê . Package it securely so it won't get damaged or lost in shipping and please include a note in the package with your name, complete mailing address, phone number, email address (in case I have any questions) and a description of what you want done any other parts you may need. When the work is completed, I'll either call or email you an invoice with the total including shipping. For payment, I accept cash (in person), money orders, cashier's checks, MasterCard, VISA, Discover (your credit/debit card will be charged the same day the items are shipped), Western Union Money Transfer and MoneyGram Money Transfers. Or you can pay A-1 Miller's through PayPal (my PayPal account name is my email address). If sending a money order, please include a note with your name, complete mailing address, phone number and a description of what the payment is for. My mailing address and phone number are below Ê . And I will return your rebuilt clutch assembly to you as soon as the work is completed after I receive your payment. Please contact me if you're interested in any of the above È parts or services.
|
Zerk
Grease Fittings. Use a 1/4-28 UNF hand tap to cut new threads for
installation of a new fitting.
Click or tap here
to learn how to cut new threads, the professional way.
|
Improving International Harvester's IH Cub Cadet "Original" Clutch Assembly - [Top of Page]
The first Cub Cadet garden
tractor manufactured is the International Cub Cadet, better known as the
Cub Cadet "Original". The reason this particular tractor
is called the "Original" because they're the very first Cub Cadet garden
tractor that International Harvester produced. That's why most folks nowadays
call them the Cub Cadet "Original". IH didn't have a model number because
they were all built basically the same, and they all share the same parts.
On these tractors, the power is transferred from a small pulley, that is on the engine, onto a larger pulley that's on the driveshaft by use of a V-belt, which act like a gear reduction. It's approximately a 1.6:1 reduction in driveshaft rotation. This means engine torque is increased approximately 1.6 times the driveshaft because the clutch/driveshaft. This increases the power and torque of the original 6¼hp engine into a 10hp engine (6¼ x 1.6 = 10).
Replacing the Drive Belt in a Cub Cadet "Original" -
To remove and install the drive belt on an IH Cub Cadet "Original", the entire clutch assembly needs to be removed. After installing the belt and reinstalling the clutch assembly, the belt needs to be tightened by pulling down on the front brace of the clutch assembly (use a pry bar), and tighten the bolts on each side of the frame. This is much easier to do on a platform work table than on the floor or ground.
Convert the V-Belt Drive System to a Chain/Sprocket Drive -
The V-belt on the Cub Cadet "Original" can be converted for use with a chain and sprocket drive. This system works great because there'll no belt to slip or rob the engine of horsepower. To make this possible:
Repairing the Drive Clutch -
If the drive clutch holds well, but will not release at times, this means the sliding parts on the driveshaft are dry or the old grease has accumulated dirt and/or has "dried up," causing the parts to bind on the driveshaft.
How to Disassemble and Reassemble the IH Cub Cadet "Original" Clutch Assembly -
But if the clutch slips, performing the following should cure the problem:
First, resurface the cast iron pressure plates on a large, flat disc or belt sander until they're perfectly flat. (Sanders are not just for woodworking.) If the clutch discs (which is part of the pulley) aren't worn excessively, they can be sanded flat as well to match the flatness of the pressure plates. Just remove the raised places, no more. But if the composite/fiber material is worn thin or if you have doubts that it will not grip well, then install new clutch facings on the pulley.
If the clutch composite/fiber material "peels off" or comes loose from the pulley, it can be reattached with a high strength adhesive, such as Krazy Glue, Super Glue, Gorilla Glue, etc. FYI - When storing an opened container of Super Glue or liquid threadlock material, store it upright and not laying flat. The [capped] tip will not dry out and clog when stored upright. As soon as the composite/fiber material is adhered on the pulley, place the clutch/pulley assembly between two thick flat steel plates to cover the entire composite/fiber material, then place them in a hydraulic press and apply light pressure to squeeze out any air bubbles that may get trapped so the composite/fiber material will have a stronger bond and lay flat. If a hydraulic press isn't available, then using one of the tires that's on a car or truck will place enough pressure, too. After the glue has dried, lightly sand the composite/fiber material on a large, flat disc or belt sander to ensure true flatness.
For even better clutch adhesion or "holding power," the OEM pressure spring can be replaced with a high pressure red (800± lb.) or yellow (1,150± lb.) spring. Be sure to drill the 3rd hole to 1/4" and install a heavy coiled/spiral pin, too! Install a new bronze bushing in the clutch release/throw-out bearing if it's worn. Then lubricate the clutch release/throw-out bearing through the factory-installed Zerk grease fitting. Under normal use, the clutch release/throw-out bearing needs to be lubricated once a year.
And as far as I'm aware, new composite/fiber facings for the IH Cub Cadet
"Original" clutch is not available from any source. But 6061 aluminum can
be used as clutch facings on the IH Cub Cadet "Original" clutch pulley. The
dimensions of the fabricated aluminum clutch facings are as follows: 4-1/2"
O.D. x 3" I.D. x 1/8" thick.
Fasten the aluminum to the pulley
with six (for strength) 10-32 UNF x 1/2" length flat head brass screws equally
spaced apart on each side. Offset the threaded holes in the pulley so the
threads of the screws on one side will not interfere with the screws on the
other side. Countersink the heads of the screws into the aluminum with the
heads slightly below the surface of the aluminum. Make sure the aluminum
is perfectly flat before installing it on the pulley, too. And of course,
when using aluminum as clutch material, a stiffer-than-stock pressure spring,
such as the high pressure red (800± lb.) or
yellow (1,150± lb.) spring, will be required to prevent clutch slippage.
Available Soon - Detailed Illustrated
Plans on How to Construct a Professional Pull-Back and Self-Propelled Garden
Tractor Pulling Sled. FYI - I have lots of
work to do in my shop and I work on my sled plans in my spare time. As soon
as my plans with an inventory list of parts to use are perfected, I'll post
the update in my websites with prices of the plans. Remember - Perfection
takes time. If it's worth having, it's worth waiting for. Also, I plan to
acquire a bigger shop and may build high quality garden tractor pulling sleds
in the future to offer for sale. Please call 573-256-0313 (shop) or 573-881-7229
(cell; text or voice message), or email
pullingtractor@aol.com if interested
in purchasing the plans or a sled. - Brian Miller
To place an order and/or for FREE professional and honest
technical assistance and support,
please contact: A-1 Miller's
Performance Enterprises | 1501 W. Old Plank Rd. | Columbia, MO (Missouri)
65203-9136 USA | Phone:
1-573-256-0313 (shop) | 1-573-881-7229 (cell; text or when leaving a voice
message, please speak slowly and clearly). Payment
Options. Please call Monday-Friday, except holidays, 9am to 5pm, Central
time zone. If no answer, please try again later. (When speaking with Brian,
please be patient because I stutter.)
E-mail:
pullingtractor@aol.com. A-1 Miller's
shop is open to the public from 9am to 5pm, with an appointment on weekends,
except holidays. Please call, text or email me before coming so I'll be at
my shop waiting for your arrival. When you visit our shop, you will be dealing
directly with the owner for the best customer service.
Directions to our shop |
1501 West Old Plank Road, Columbia, MO - Google Maps or
Map of 1501 West Old Plank
Road, Columbia, MO by MapQuest. If you're the kind of person who don't
trust delivery/shipping companies (mis)handling your high-dollar and fragile
merchandise, you can make the long drive to
A-1 Miller's shop to personally
drop off and/or pick up your carburetor, clutch assembly, engine parts, entire
engine, transaxle, transmission, entire garden tractor, etc. for rebuilding
and/or repairing, or to purchase parts. "The road to a friend's house (or
shop) is never long." (We're planning to relocate our business to other property
with a bigger and better shop so we can provide many more high quality parts
and professional services.)
[Return To Previous Paragraph, Section
or Website]
To place an order, please call the number below Ê or send an email with your name, complete and correct postal address and phone number and so I can figure the total with shipping cost and USPS Tracking. For payment options for parts ordered or services performed, or to make a donation to my websites, I accept cash (in person), USPS Postal Money Orders, cashier's checks, business checks, MasterCard, VISA, Discover, American Express (please add 2.5% to the total for the credit/debit card processor's surcharge), Western Union Money Transfer or MoneyGram Money Transfers. (If a part for a specific purpose is special ordered, your debit/credit card may be charged for the full amount or as a deposit right after your order is placed; please do not send your debit/credit card information in email!) Or you can pay A-1 Miller's through PayPal. (My PayPal account name is my email address. And be sure to mention in PayPal a description of what the payment is for.) If sending a money order, please include a note in the envelope with your name, complete and correct postal address, phone number and a description of what the payment is for. My mailing address and phone number are below Ê . I'll make a note of your order, and I may have to order some of the parts, which should take a few days to come in, but I will send the parts to you as soon as I have everything in stock after I receive your payment.
IMPORTANT - When sending your part(s) to A-1 Miller's for rebuilding or repair, package everything securely so the item(s) won't get damaged in shipping and please include a note in the box with your name, mailing address, phone number (in case I have any questions) and a description of what you want done. When shipping heavy parts, it's best to put a slightly smaller box inside a larger box, to double the strength and integrity of the package. Because the clumsy "gorillas" or incompetent and uncaring workers that work for certain delivery services mishandle the heavy packages and don't care. And when the work is completed, I'll either call or email you an invoice with the total including shipping & handling.
Payment Options and We Ship to Canada and
Worldwide 
Item(s) in a package or cushioned envelope weighing less than 1 lb. is sent
by US Postal Service Airmail Letter Post for a 4-7 days delivery. Packaged
item(s) weighing over 1 lb. and up to 66 lb. is sent by US Postal Service
Airmail Parcel Post for a 4-10 days delivery. I cannot use the US Postal
Services' Flat Rate Priority Mail envelopes and boxes to ship outside U.S.
territories. Item(s) weighing over 67 lbs. or more is sent by FedEx Ground
or equivalent services. We try to keep our shipping cost to customers within
reason. Therefore, we don't ship our products in a fancy-looking package
with our company name and/or logo on it because most customers will just
toss it in the trash after they remove the contents. And being there is no
USPS tracking number outside the US, all I can do is make sure I write your
address correctly on the customs form and on your package.
My websites are not set up to process orders and accept payments. Therefore, for payment options, I accept cash (in person), USPS Postal Money Orders, cashier's checks, business checks, MasterCard, VISA, Discover, American Express (please add 2.5% to the total amount for the credit/debit card processor's surcharge), Western Union Money Transfer or MoneyGram Money Transfers. If paying with a credit/debit card, please call me at either number below. To make a payment to me through PayPal, please click this link: https://www.paypal.me/PullingTractor. Please use the "Friends and Family" option, or add 3% to the total amount to cover PayPal's processing surcharge. Or to make a payment to me (pullingtractor@aol.com) in the US through the Venmo app, please click this link: venmo.com. Or use Cash App to make a payment to me (pullingtractor@aol.com). And be sure to mention in PayPal, Venmo or Cash App a description of what the payment is for with your full name, postal address, phone number and email address. If sending a money order or cashier's check, please include a note in the envelope with your name, complete mailing address, phone number, email address and a description of what the payment is for. I'll make a note of your order when I have all your information, and I may have to order some of the parts, which should take a few days to come in, but I will send everything on your list to you as soon as I have the parts in stock after I receive your payment.
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Copyright © 1996-Present. This website created, designed and maintained by Brian Miller.
Professionally Rebuild/Repair
Peerless Right Angle Gearbox for belt-drive Cub Cadet garden tractor models
482, 580, 582 Special, 1100, 1204 and 1604 with the Peerless model 2300
transaxle. We also rebuild/repair most other makes and models of right angle
gearboxes used in garden tractors, installed on mower decks and used elsewhere,
as long as replacement parts are available. Repair price varies depending
on which parts needs to be replaced and/or repaired.
Driveshafts for Clutch Drive
IH and MTD-built Cub Cadet Models 70, 71, 72, 73, 86, 100, 102, 104, 106,
108, 122, 124, 126, 128, 580, 582, 800, 1000, 1050, 1200, 1604, 1606 and
1806, including models 1250, 1450 and 1650 with a hydrostatic disconnect
attachment. NOTE: These driveshafts are made to
order. When ordering, please specify model of Cub Cadet and possibly exact
length and exactly where the coiled/spiral pin holes needs to be drilled.
Please indicate if you want the 3rd hole drilled for the main pressure spring
or if you are going to use a 
Driveshafts for Hydrostatic
Drive IH Cub Cadet Models 105, 107, 123, 125, 127, 147, 109, 129, 149, 169,
682, 782, 784, 1541, 1710, 1711, 1712, 1810, 1811, 1812 and 1860. NOTE:
These driveshafts, with the OEM factory designed machined-down 3/8" diameter
support end, are originally used with Cub Cadet coupler arm with the 25/64"
center hole (
Driveshafts for Hydrostatic
Drive Cub Cadet Models 1250, 1450 and 1650.
Driveshafts for Hydrostatic
Drive MTD-built Cub Cadet Models 680, 682, 782, 782D, 784, 882, 982, 1210,
1211, 1282, 1512, 1541, 1710, 1711, 1712, 1810, 1811, 1812 and 1860.
Steel Angled Driveshaft Support
Brace for use with Pillow Block Bearing listed above
È. Made of 1/8" thickness x 2-1/2" width
angled steel with holes for pillow block drilled. Super tough, will not break,
even under severe vibration. For use in all models of IH- and MTD-built Cub
Cadet competition garden pulling tractors. NOTE: Before welding this brace
between the Cub Cadet frame rails, first install pillow block bearing w/housing
on assembled driveshaft, connect driveshaft to transaxle and engine, tighten
engine mounting bolts to tractor frame, then fasten this angle brace to pillow
block bearing. This will guarantee the pillow block bearing and brace is
in perfect alignment and centered with the driveshaft. Otherwise, the driveshaft
will be noisy. Then permanently weld angle brace to tractor frame rails.
See correct installation below. Ê
$20.00 each, plus shipping & handling. An ingenious and innovative
concept by Brian Miller. Please accept no advertised copycat products of
this kind. (But I do appreciate them acknowledging my ingenuity and
intelligence.) 
Solid motor mounts are an
alternative to replacing deteriorated OEM "ISO" rubber engine mounts, which
is usually associated with a damaged "flexible" 3-pin clutch drive plate
and damaged clutch components. These fit IH Cub Cadet "Quiet Line" garden
tractor models 482, 800, 1000, 1100, 1200, 1204, 1210, 1211, 1250, 1282,
1340, 1450 and 1650. If the engine in your tractor is mounted on angled cradles
with rubber mounts between the cradles and tractor frame, then these are
what your tractor need.
Direct replacement for OEM
ISO-rubber mounts with no modifications to the tractor whatsoever. The solid
motor mounts install between the engine mounting cradles and tractor frame.
A thick flat washer fastens on top of the cradles. Torque the bolts at 35
ft. lb. Can be easily removed if rubber mounts are desired instead.
Rectangular Flange with Pressed-In
Self-Aligning Spherical Bronze Pilot Bushing. Fits Cub Cadet "Quiet Line"
Reinforced Rubber Driveshaft
Flex Coupler Disc. Designed specifically for Cub Cadet "Quiet Line" garden
tractor models 482, 580, 582, 582 Special, 682, 782, 782D, 800, 882, 982,
984, 986, 1000, 1050, 1100, 1200, 1204, 1210, 1211, 1250, 1282, 1450, 1512,
1541, 1604, 1606, 1650, 1710, 1711, 1712, 1806, 1810, 1811, 1812, 1860, 1872,
1912, 1914 and 2072. Can also be used on the IH Cub Cadet "Original" garden
tractor. Very tough, reinforced rubber/weaved fiber material. Allows for
out-of-alignment rotation of driveshaft in 
Professionally resurface / machine
YOUR Cub Cadet garden tractor clutch pressure plates until perfectly flat
with a smooth, slick surface so the new clutch friction disc will adhere
100% to prevent slippage, and then true-up outer edge to prevent
New Front OEM Cub Cadet Pressure
Plate. (With hole for spiral pin.) OEM Cub Cadet part #'s IH-384651-R11,
903-0214. $112.45 each, plus shipping & handling.
High quality aftermarket. Long
lasting premium belt. 1/2" wide x 33" length. $10.00 each, plus shipping
& handling.
5/8" I.D. Zinc-Plated Steel
Split Lock Washer and Steel Spacer Kits. Split lock washer goes between the
pressure plates for smoother clutch engagement and guaranteed release of
clutch, and steel spacer replaces the teaser spring. NOTE: Use the lock
washer only with the 
Clutch Adjustment/Release Rods.
Each rod listed below fits Cub Cadet 70, 71, 72, 73, 100, 102, 104, 106,
122, 124 and 126.
Clutch Adjustment/Release Rods.
Each rod listed below fits Cub Cadet garden tractor models 86, 108, 128,
800, 1000 and 1200. (Models 800, 1000 and 1200 with caliper/axle brakes.)
NOTE: Clutch adjustment/release rod for Cub Cadet models 800, 1000 and
1200 with the internal brake
Clutch Adjustment/Release Rods.
Each rod listed below fits Cub Cadet garden tractor models 580, 582, 1050,
1535, 1604, 1606 and 1806.
Clutch Release/Throw-Out Bearing
for wide frame/solid mounted engine IH Cub Cadet garden tractor models 86,
108 and 128. Precision, high-speed sealed collar bearing w/short pressed-in
sleeve. This custom-made larger diameter throw-out bearing makes more contact
in the clutch release lever for less wear to the lever. Bearing dimensions:
.780" I.D. x 1.850" O.D. x .550" height. NOTE: The protruding center part
of the bearing faces forward in the tractor, toward the engine.
Lubricating Sleeve with
Clutch Release/Throw-Out Bearings
for wide- and spread-frame ISO-mounted engine IH- and MTD-built Cub Cadet
garden tractor models 580, 582, 800, 1000, 1050, 1200, 1535, 1604, 1606 and
1806. Also fits Cub Cadet garden tractor models 1250, 1450 and 1650 with
hydrostatic disconnect attachment. Bearing dimensions: .780" I.D. x 1.850"
O.D. x .550" height. This larger diameter bearing covers more area in
the wide and spread frame 
Steel Flat Washer for OEM, 800
lb. or 1,150 lb. clutch pressure springs listed above. Prevents end of spring
from possibly uncoiling around 3rd coiled/spiral pin. Not required when spring
is used with 3/4" steel spacer or 