McLeod Racing Clutch Kits 101

On an almost daily basis we are asked "Which McLeod clutch kit should I get?!" Guys with GT500s, Cobras, supercharged Mustang GTs & many others sometimes are torn on which setup is the right one for their application.

Jared, our head honcho, wanted to take some time and go over the McLeod RST and RXT clutch kits & which part #s you will need for YOUR setup, including the corresponding slave cylinders and even the setup for guys with a TR6060 swap. 

 

Lethal Performance Tech Tips: McLeod Clutches

 

Did you get all that? We understand the information can be a bit overwhelming for some but we just want to make sure you are getting the RIGHT clutch & accessories for your setup. Here's some notes:

 

McLeod RST:

  • Rated to 800hp
  • Organic Compound Discs
  • Bolt-on or Forced Induction cars 
  • Street car setups only; RST cannot withstand the heat of track use

 

McLeod RXT:

  • Rated to 1000hp
  • Ceramic Compound Discs
  • Great for track use

 

McLeod RXT1200 Heavy Duty:

  • Rated to 1200hp
  • Same as RXT but pressure plate has a higher clamping force

 

NEW McLeod SFT 2000:

  • Rated to 2000hp
  • Semi-metallic discs offer smooth engagement
  • Stiffer pedal but still street friendly

 

 

Let's move on to specific applications. Scroll down or click the links below to jump to your vehicle.

 

 


 

2007-2009 Shelby GT500

RST w/ lightened steel flywheel: 6908-07

RST w/ aluminum flywheel: 6335807 

RST w/ billet steel flywheel: 6435807 

 

RXT w/ lightened steel flywheel:  6918-07

RXT w/ aluminum flywheel: 6335807M 

RXT w/ billet steel flywheel: 6435807M 

 

RXT HD w/ lightened steel flywheel: 6918-07HD

RXTHD w/ aluminum flywheel: 6335807HD 

RXTHD w/ billet steel flywheel: 6435807HD 

 

SFT 2000 w/ billet steel flywheel: 84308B07M

SFT 2000 w/ aluminum flywheel: 83308B07M

 

These will all use the 05-09 factory, longer style slave cylinder.

 

We HIGHLY recommend purchasing these kits & not using your factory flywheel as the OEM flywheel has a 7” opening for the hub where the McLeod disc only has a 6 1/8” hub. This causes the friction surface to sit inside of where it meets the flywheel, giving you less contact. This in turn leads to faster wear & improper clutch hold.

 

NOTE: If your car has been into Ford for the clutch TSB (10-3-8 or 8-16-4), then you have a 2010+ GT500 clutch & short slave setup in the car and will need the 6975-07M or 6975-07HD setups instead.

 


 

2010-2014 Shelby GT500

The 6975-07 clutch kits are sprung hub, dampening driveline vibrations & offering smoother engagement than the solid hub setups.

 

RST: 6975-07

RXT:  6975-07M

RXT HD: 6975-07HD

These work with the factory, shorter style slave cylinder.

These will all work with your factory flywheel. You do NOT need to purchase a flywheel, no matter what the condition of your stock flywheel is.  The 6975-07 series comes built with it’s OWN friction surface that is between the discs and your OEM flywheel. We do offer a stock replacement from McLeod (SKU: 473458) but again, it is NOT needed.

 


If you wish to run the new SFT 2000 clutches on your 2010-2014 Shelby GT500, have no fear... you can! You will just need to install an 07-09 GT500 slave cylinder.

You can purchase an OEM one or a McLeod one.

 

Here are the SFT 2000 kit numbers:   

SFT 2000 w/ billet steel flywheel: 84308B07M

SFT 2000 w/ aluminum flywheel: 83308B07M

 


2005-2010 Mustang GT

10 spline RST: 6912-03

10 spline RXT: 6932-03

RXT HD: 6932-03HD

Will work with factory flywheel, but a replacement flywheel is recommended (Lightened Steel Flywheel, SKU: 463456 for 6-bolt, 463458 for 8-bolt).

NOTE: For 26 spline, change ’03’ in SKU to ’07’.

 


2011-2017 Mustang GT

The options for this car are a bit more expansive and include both a solid hub & sprung hub setup.

 

Solid hub kits:

 

RST: 6912-25

RXT: 6932-25

RXT HD: 6932-25HD

These will need either a lightened steel flywheel (SKU: 463458) or an aluminum flywheel (SKU: 563408) or purchase one of the kits below:

 

RST w/ aluminum flywheel: 6335825 

RST w/ billet steel flywheel: 6435825

 

RXT w/ aluminum flywheel: 6335825M

RXT w/ billet steel flywheel: 6435825M

 

RXTHD w/ aluminum flywheel: 6335825HD

RXTHD w/ billet steel flywheel: 6435825HD
 

 

Sprung hub kits:

These kits are a sprung hub design, dampening driveline vibrations & offering smoother engagement than the solid hub setups.

 

Sprung hub RST with Steel flywheel: 11176975

Sprung hub RST with Aluminum flywheel: 11176975A

 

Sprung hub RXT with Steel flywheel: 11176975M

Sprung hub RXT with Aluminum flywheel: 11176975MA

 

We know there are rumors & urban legends that the RXT will destroy your MT82 right away, however we’ve run an RXT in ALL of our cars, including multiple MT82s, and we have not had an issue. These cars were NOT babied, either.

 

Want to pair a McLeod clutch & flywheel kit with an MGW shifter for extra savings?

 

 

Click below for packages:

 

2011-2014 Mustang GT McLeod clutch kit & MGW Shifter: LP-PWR-S197MCLMGW

2015-2017 Mustang GT McLeod clutch kit & MGW Race Spec Shifter: LP-PWR-S550-MCLMGWRACE

2015-2017 Mustang GT McLeod clutch kit & MGW X-Spec Shifter: LP-PWR-S550-MCLMGWX

 

 

2011-2017 Mustang with a TR6060 Swap

 

 

If you swap a TR6060 into your car, we will basically treat it as a 2010-2014 Shelby GT500. 

 

RST: 6975-07

RXT:  6975-07M

RXT HD: 6975-07HD

You will also need to purchase a short slave cylinder (SKU: DR3Z-7A508-A)

 


2018-2020 Mustang GT

The options for this car are limited right now, however McLeod does offer an RXT kit for the car.

 

RXT w/ aluminum flywheel: 6333825M

 


1996-2004 SVT Cobra / Mach 1 (requires 8-bolt flywheel)

 

Clutch only:

 

RST: 6912-03 (10 spline) / 6912-07 (26 spline)

RXT: 6932-03 (10 spline) / 6932-07 (26 spline)

RXTHD: 6932-03HD (10 spline) / 6932-07HD (26 spline)

 

Clutch & Flywheel Combos:

 

RST w/ aluminum flywheel: 6335803 (10 spline) / 6335807 (26 spline)

RST w/ billet steel flywheel: 6435803 (10 spline) / 6435807 (26 spline)

 

RXT w/ aluminum flywheel: 6335803M (10 spline) / 6335807M (26 spline)

RXT w/ billet steel flywheel: 6435803M (10 spline) / 6435807M (26 spline)

 

RXTHD w/ aluminum flywheel: 6335803HD (10 spline) / 6335807HD (26 spline)

RXTHD w/ billet steel flywheel: 6435803HD (10 spline) / 6435807HD (26 spline)

 

SFT 2000 w/ billet steel flywheel: 84308B07M (26 spline only)

SFT 2000 w/ aluminum flywheel: 83308B07M (26 spline only)

 

NOTE: The kits mentioned in the 03-04 Cobra and 07-09 GT500 applications will also fit a late model Mustang with a Magnum XL transmission swap.

 

We hope this helps you out!

Give us a shout with any questions.

 

877-2-LETHAL (561-753-8105)

Email: support@lethalperformance.com