McLeod RXT Twin Disc Clutch Kit 18-23 Ford Mustang RST 1 1/8 x 26 Spline 164T 8 Bolt AL Flywheel
Swapping a 2018-2023 Mustang GT from the factory MT82 to a heavier-duty gearbox leaves one question: which clutch matches the new input shaft? McLeod part number 6333807 is a twin disc clutch on a billet aluminum flywheel for the Gen 3 Coyote 5.0L with the 8-bolt crank, splined 1-1/8 in. x 26 for a transmission with that input. If your car still has the stock gearbox, this is not your kit.
The product title calls this an RXT kit, but McLeod's own description for 6333807 reads RST Twin Disc, 18-23 Mustang 5.0L 8-bolt, 1-1/8 x 26, aluminum, organic. In McLeod's numbering the plain number is the organic RST and the M suffix is the ceramic RXT, so this listing is the organic street twin. If you want ceramic discs for the same swap, order the RXT version, 6333807M.
Two organic discs and a floater plate share the clamp load, so the clutch holds about 800 horsepower according to McLeod while the pedal stays lighter than stock. Organic facings engage smoothly, which suits a street car with a blower or turbos that sees traffic and the occasional strip pass. McLeod is clear that the RST is not intended for competition. The assembly comes mounted to a dedicated 8-bolt aluminum flywheel with a 164 tooth ring gear, replacing the factory dual mass flywheel and shedding a lot of rotating weight.
Confirm the input shaft spec of the transmission you are installing. The stock 2018-up MT82 uses a 1 x 23 metric spline, and a clutch splined 1-1/8 x 26 will not slide onto it. Count the splines or check the gearbox maker's spec sheet before ordering. If you are diagnosing slip on a running car, our slipping diagnosis guide covers the road test, and manual transmission repair costs help you budget the rest of the swap.
This listing fits 2018-2023 Ford Mustang 5.0L cars with the 8-bolt crank flange and a transmission with a 1-1/8 in. x 26 spline input shaft. McLeod lists 2015-2017 cars under other part numbers. For a 2018-up GT still running the factory gearbox, choose the 1 x 23 spline RST kit, 6333825. Your bellhousing, release bearing and pilot bearing must all suit the new gearbox. If you are unsure, send us your year, VIN and the transmission model before ordering.
| Brand | McLeod Racing |
| Part number | 6333807 |
| Fits | McLeod RXT Twin Disc Clutch Kit 18-23 Ford Mustang RST 1 1/8 x 26 Spline 164T 8 Bolt AL Flywheel |
| Vehicle fitment | Ford Mustang Rst 1 1/8 (2018-2023) |
| Type | Clutch Kits - Multi |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. The factory MT82 uses a 1 x 23 metric spline. This kit is splined 1-1/8 x 26 for a swapped transmission. For the stock gearbox, use McLeod 6333825 or 6333825M.
McLeod describes 6333807 as the RST with organic discs, rated to about 800 hp for street use. The ceramic RXT for the same application is 6333807M.
Yes. It comes on a dedicated 8-bolt billet aluminum flywheel with a 164 tooth ring gear, replacing the factory dual mass flywheel.
A bellhousing, release bearing and pilot bearing that match the new gearbox, plus correct hydraulics. Confirm each with the transmission maker before ordering.
About 1,200 normal clutch engagements on the street with traction control off. McLeod says not to break it in on a chassis dyno.
