McLeod Racing RST HD Twin w/ Steel Flywheel - 07-09 Ford GT500 8 Bolt - 1-1/8 x 26 Spline - 164T
A 2007-2009 Shelby GT500 with a smaller pulley, a tune or a bigger blower can overpower the factory twin disc long before the rest of the drivetrain gives up. Typical complaints are a tach flare on the shift into third, slip in fourth at full boost, or a clutch that judders after a few hot laps. McLeod 6908-07MD is the RST HD twin disc for this car, supplied with a steel flywheel for the 8-bolt 5.4L crank, a 164 tooth ring gear and discs splined 1-1/8 x 26 for the TR-6060 six-speed.
McLeod places the RST HD between its standard RST and its RXT twin disc kits. It stacks two discs with a hybrid friction setup: full-face organic material on one side for smooth, repeatable engagement and segmented ceramic on the other for extra bite once torque climbs. McLeod rates the RST HD for up to 950 horsepower and describes the pedal as lighter than stock, which matters in a car that sees rush-hour traffic as often as the drag strip.
The steel flywheel is the heavier of McLeod's two flywheel choices for the RST HD. On a GT500 that weighs close to two tons, the extra rotating mass helps the car pull away from a stop without slipping the clutch, and it keeps idle and cruise manners close to factory. The kit ships at roughly 47 lb.
Load the car in fourth at low rpm and go to full throttle. If engine speed rises faster than the car accelerates, the clutch is slipping. A pedal that goes soft when hot, sticks to the floor or will not release fully points to the master cylinder, the slave or old fluid instead. Look for oil on the bellhousing; a rear main or input seal leak will ruin new discs. Our slipping diagnosis guide covers each check, and flare vs slip explains how each one feels from the driver seat.
Listed for the 2007, 2008 and 2009 Ford Mustang Shelby GT500 with the supercharged 5.4L, 8-bolt crank and the factory 1-1/8 x 26 spline input, 164 tooth ring gear. The 2010-2014 GT500 uses another McLeod part number, such as the 6975-07HD RXT 1200 kit. If your car has a swapped gearbox, an aftermarket crank or a non-stock starter, send the year, VIN and parts list before ordering. Building well past 950 horsepower? Step up to the all-ceramic RXT HD 6918-07HD or the standard RXT 6918-07.
Expect some gear rattle at idle with the pedal out; that is normal for a twin disc with a floater. Our manual repair cost guide helps you budget labor if a shop is doing the job.
| Brand | McLeod Racing |
| Part number | 6908-07MD |
| Fits | McLeod Racing RST HD Twin w/ Steel Flywheel - 07-09 Ford GT500 8 Bolt - 1-1/8 x 26 Spline - 164T |
| Vehicle fitment | Ford Gt500 8 Bolt (2007-2009) |
| Type | Clutch Kits - Multi |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. It is listed for the 2007-2009 GT500 with the 8-bolt crank and 1-1/8 x 26 spline. The 2010-2014 cars need a different McLeod part number.
McLeod rates the RST HD twin disc for up to 950 horsepower. For builds beyond that, McLeod's RXT kits are the next step up.
Yes. McLeod pairs organic friction with segmented ceramic for smooth engagement and describes the pedal as lighter than stock. The steel flywheel also helps the heavy car leave a stop cleanly.
Steel adds rotating mass, which makes launches and low-speed driving easier in a heavy car. Aluminum revs faster but is less forgiving in traffic.
Replace the pilot bearing, inspect the release bearing, fix any rear main or input seal leak, and bleed the clutch hydraulics with fresh fluid.
