McLeod RST HD Twin Disc Clutch Kit with Steel Flywheel (6435807MD) - 2005-2017 Ford Mustang 4.6L & 5.0L
Upgrade your high-horsepower Mustang with the McLeod RST HD Twin Disc Clutch Kit, engineered for enthusiasts running aftermarket transmissions who demand outstanding street manners without sacrificing track performance. Rated to handle up to 950 horsepower, the RST HD bridges the gap between McLeod's proven RST and RXT clutch systems, delivering exceptional torque capacity, smooth engagement, and reliable performance for aggressive street driving, drag racing, and road course applications.
The RST HD utilizes McLeod's advanced hybrid twin-disc design, combining smooth-engaging organic friction material on one side of each disc with high-bite segmented ceramic material on the other. This innovative combination delivers increased torque-holding capability while maintaining light pedal effort and reducing drivetrain shock. Paired with a durable billet steel flywheel, this kit offers excellent heat resistance, long service life, and consistent clutch performance for demanding high-performance builds.
Features
- Fits 2005-2017 Ford Mustang 4.6L and 5.0L applications with an 8-bolt crankshaft
- Designed for vehicles equipped with aftermarket transmissions
- Rated to support up to 950 horsepower
- Twin-disc clutch design for increased torque capacity and improved heat management
- Hybrid organic and segmented ceramic friction discs
- Smooth engagement with excellent street drivability
- Ideal for high-performance street and track applications
- Diaphragm-style pressure plate provides light pedal effort
- Includes durable billet steel flywheel
- 164-tooth flywheel with internal engine balance
- Designed for 1-1/8-inch, 26-spline transmission input shafts
- Includes installation hardware and alignment tool
Specifications
- Part Number: 6435807MD
- Horsepower Rating: 950 HP
- Disc Diameter: 9.688 inches
- Input Shaft Diameter: 1.125 inches
- Input Spline: 26
- Disc Material: Organic / Ceramic
- Disc Style: Full Face / Segmented
- Hub Style: Solid
- Pressure Plate Style: Diaphragm
- Flywheel Material: Billet Steel
- Engine Balance: Internal
- Ring Gear: 164 Tooth
- Crankshaft Bolt Pattern: 8-Bolt
- Throwout Bearing: Not Included
- Pilot Bushing: Not Included
Fitment
- 2005 Ford Mustang GT 4.6L (Aftermarket Transmission)
- 2006 Ford Mustang GT 4.6L (Aftermarket Transmission)
- 2007 Ford Mustang GT 4.6L (Aftermarket Transmission)
- 2008 Ford Mustang GT 4.6L (Aftermarket Transmission)
- 2009 Ford Mustang GT 4.6L (Aftermarket Transmission)
- 2010 Ford Mustang GT 4.6L (Aftermarket Transmission)
- 2011 Ford Mustang GT 5.0L (Aftermarket Transmission)
- 2012 Ford Mustang GT 5.0L (Aftermarket Transmission)
- 2013 Ford Mustang GT 5.0L (Aftermarket Transmission)
- 2014 Ford Mustang GT 5.0L (Aftermarket Transmission)
- 2015 Ford Mustang GT 5.0L (Aftermarket Transmission)
- 2016 Ford Mustang GT 5.0L (Aftermarket Transmission)
- 2017 Ford Mustang GT 5.0L (Aftermarket Transmission)
Additional Notes
- Designed for vehicles equipped with an 8-bolt crankshaft, 164-tooth flywheel, and 1-1/8-inch, 26-spline aftermarket transmission input shaft.
- For aftermarket transmission applications only.
- 2011-2017 Mustang GT applications may require a crankshaft position relearn procedure or professional tuning after installation.
- Includes billet steel flywheel, installation hardware, and alignment tool.
- Throwout bearing and pilot bushing are not included and must be purchased separately if required.
- Ideal for high-horsepower street and track builds requiring increased torque capacity with smooth engagement and long-lasting durability.
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