The purpose of this section is to help you choose the proper McLeod Clutch, answer basic installation questions, help with troubleshooting current clutch issues and other important topics.

Please remember that this section is for reference only. Your vehicle is unique. The way you drive it is unique. For specific questions about your application please email us at info@mcleodracing.com or call our Tech Line at 714-630-3668.


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If you wish to have your McLeod Product Serviced please CLICK HERE and complete form. A RMA number will be provided and is required to be written on the outside on your package for tracking purposes.


What is the proper break in period?

We would like to see 500-600 miles of stop & go city driving. With no drag racing or dyno tuning. Make sure to drive in stop & go city driving to actuate the clutch 1200 to 1500 times. You can drive the car 600 miles on the interstate and only shift the car 5 or 6 times and not break in the clutch.

What Can Cause Clutch Chatter?

1.Oil or grease on the clutch facings.

2.Worn or damaged clutch linkage, leaf springs, bushings, mounts, u-joints, cv joints, engine mounts, transmission mounts.

3.A flywheel that has not been resurfaced properly, has hot spots, has excessive run-out and or incorrect flywheel step.

4.Pressure plate or disc that are bent.

5.Defective pressure plate and or disc.

6.An engine that is not tuned properly.

7.A disc that either lacks enough marcel or has no marcel at all.

What Can Cause Clutch Slippage?

1.A clutch assembly that is worn or failing.

2.Oil or grease on friction surfaces.

3.A clutch that is not designed to hold the amount of power the being made.

4.A clutch not design for the type of driving being done i.e. using a clutch designed for the street at the track.

5.Improper clutch adjustment, bearing free play.

What Can Cause Poor Clutch Release?

1.Clutch disc binding on input shaft.

2.Worn or damaged or improperly adjusted clutch linkage.

3.Improperly bled or faulty hydraulics.

4.Flywheel improperly surfaced, machined too thin or not resurfaced before new clutch was installed.

5.Damaged or bent pressure plate and or disc.

6.Clutch disc hub hitting the flywheel bolts.

7.Improper clutch disc thickness.

8.Bent input shaft.

What can cause poor shifting?

1.Shifter installed improperly or shifter linkage improper adjusted or damaged.

2.Misaligned bellhousing.

3.Wrong fluid type used in transmission.

4.Worn transmission parts i.e. synchro gears and/or bent shift fork.

5.Pilot bushing worn or binding on input shaft.

Must I Use The Alignment Pins In The Flywheel?

Yes. The pins help to ensure proper alignment of the pressure plate and add strength.

How Long Should A McLeod Clutch Last?

The biggest factors in clutch life are the way it is used and the output of the engine. McLeod Clutches are designed for maximum life but that life can be shortened by using much stickier tires than stock, stop and go driving, track use, tires of larger diameter and other factors that place added stress on the clutch.

What Are Musts When Replacing My Clutch?

1.Change the pilot bearing.

2.Break the clutch in according to the instructions provided.

3.Ensure proper bellhousing alignment.

4.Resurface the flywheel.

5.Inspect the entire clutch system including hydraulics and linkage.

What hydraulic bearing is right for me? 1300 vs 1400 series

The 1300 series bearing is designed to bolt onto the face of the transmission in placement of the factory bearing retainer. This series is commonly found on early model transmissions such as your Muncie,T-10, Super T-10,Saginaw,Top Loader (Both small shaft and Large Shaft) and GM T-5. All these transmissions have short inputshafts and generally have “A” dimensions with less than 3″ (in most cases)

The 1400 series bearing is designed for universal applications that McLeod Racing does not have a specific bolt on application but still has a 3″ or greater “A” dimension. This bearing is also commonly found in Ford T-5, TR-3550,TR-3650,T-45,T-56 for GM & Ford and TR-6060 transmissions.

What size master cylinder is recommended with a McLeod Racing internal Hydraulic Bearing?

We recommend a 3/4″ bore master cylinder with a 1″ stroke utilizing a 6:1 pedal ratio. Make sure to add a pedal stop if the master cylinder rod travels more than 1″ to eliminate over travel.

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