McLeod RXT Twin Disc Clutch Kit 2018 Ford Mustang RXT 1 x 23 Spline 0 Bal w/164T 8 Bolt AL Flywheel
Put a supercharger or turbo kit on a 2018 or later Mustang GT and the factory MT82 clutch is usually the first thing to give up. The McLeod 6333825M is an RXT twin disc clutch with a dedicated billet aluminum flywheel for the S550 Mustang GT 5.0L Coyote, built for the stock six-speed's 1 inch by 23 metric spline input so the transmission does not have to change.
The factory setup is a single disc on a dual mass flywheel. This kit replaces both with a complete McLeod unit: pressure plate, two ceramic faced discs, a floater plate and an aluminum flywheel machined for the 8-bolt Coyote crank with a 164 tooth ring gear and zero external balance. Two discs give twice the friction area, so the clutch holds much more torque without a heavy pedal. McLeod describes the RXT street twin as able to handle about 1000 horsepower with a pedal lighter than stock.
The aluminum flywheel is the other big change. It drops a lot of rotating weight compared to the dual mass unit, so the engine revs up and drops between shifts faster, which suits road course and drag use. The tradeoff is that you need a little more throttle pulling away, and some gear rattle at idle is normal once the dual mass damping is gone.
Test for slip in a high gear: from low rpm go to full throttle and see if engine speed outruns road speed. Then check the hydraulics. A leaking slave cylinder, low reservoir or a pedal that drifts can stop the clutch from clamping fully and look just like a worn disc. If the noise is coming from the flywheel itself, the dual mass unit may be worn through even if the disc still holds. Our manual versus automatic repair cost guide lays out what a clutch job costs once labor is included.
Our listing title calls out the 2018 Mustang, and the McLeod catalog text for this part number covers the 2018 and later S550 Mustang 5.0L with the 1 x 23 metric spline, 8-bolt crank, 164 tooth ring gear and zero balance. Some McLeod copy lists 2018 to 2022 and some 2018 to 2023, so if you have a late S550, send us the year and VIN and we will confirm it. This kit is for the factory six-speed spline only. If your car has been swapped to a transmission with a 1-1/8 x 26 input, use the 18-23 Mustang twin with 1-1/8 x 26 spline. For a 2024 or later S650 GT, the matching part is the 2024 Mustang RXT with aluminum flywheel. Want an organic disc for more street comfort? Look at the RST twin on the same aluminum flywheel.
| Brand | McLeod Racing |
| Part number | 6333825M |
| Fits | McLeod RXT Twin Disc Clutch Kit 2018 Ford Mustang RXT 1 x 23 Spline 0 Bal w/164T 8 Bolt AL Flywheel |
| Vehicle fitment | Ford Mustang Rxt 1 X (2018) |
| Type | Clutch Kits - Multi |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
McLeod's catalog text covers the 2018 and later S550 Mustang 5.0L with the factory 1 x 23 spline six-speed. Ranges in their copy differ between 2018-22 and 2018-23, so send us your year and VIN for a late car.
Yes. The kit includes its own billet aluminum flywheel for the 8-bolt crank with a 164 tooth ring gear and zero balance, so the factory dual mass flywheel comes out.
No. The S650 Mustang uses a different McLeod part number. Look at the 2024 Mustang RXT with aluminum flywheel instead.
No release bearing or pilot bearing is listed in the kit contents. Plan on a new slave cylinder and a pilot bearing while the transmission is out.
Some gear rattle at idle is common once a dual mass flywheel is replaced with a solid lightweight one. It is noise from the transmission gears, not a fault with the clutch.
McLeod rates the standard RXT street twin at roughly 1000 horsepower. For more than that, McLeod offers HD versions with higher clamp load.
