McLeod Racing RST HD Twin Disc Clutch Kit w/ Steel Flywheel – 2011–2017 Ford Mustang GT / Boss 302 5.0L Coyote | 164T | 950HP Rated

The McLeod RST HD Twin Disc Clutch Kit is engineered for 2011–2017 Ford Mustang GT and Boss 302 owners who need significantly more holding power than stock while retaining the street manners required for daily driving. Rated to 950 horsepower, the RST HD sits between McLeod’s RST and RXT twin-disc systems — delivering an ideal balance of torque capacity and drivability for high-horsepower Coyote builds that see both street use and weekend track or strip duty. This kit includes a steel flywheel (164-tooth) for a complete, ready-to-install package.

Hybrid Friction System – Organic + Ceramic

The RST HD uses a dual-disc hybrid friction design that combines two different friction materials to balance engagement feel with holding power:

• Full-Face Organic Friction (one disc): Full-face organic friction material provides smooth, progressive engagement and excellent durability under repeated street and strip use — the organic disc is responsible for the RST HD’s street-friendly engagement feel and pedal modulation
• Segmented Ceramic Friction (opposing disc): Segmented ceramic friction material on the opposing disc provides increased bite and enhanced holding power when performance demands rise — the ceramic disc is responsible for the RST HD’s elevated torque capacity over a single-disc or full-organic twin-disc setup

This hybrid combination allows the RST HD to handle aggressive driving conditions — high-horsepower launches, repeated hard acceleration, and track use — while preserving the street-friendly engagement characteristics McLeod is known for. Not as aggressive as a full-ceramic twin-disc, but significantly more capable than stock or a single-disc performance clutch.

Key Features

• 950HP Rated – High-Horsepower Coyote Applications: Rated to 950 horsepower — suitable for supercharged, turbocharged, and naturally aspirated 5.0L Coyote builds running well beyond stock power levels. Verify your specific power level and intended use against McLeod’s application guide before ordering
• Steel Flywheel Included – 164-Tooth: Complete kit includes a steel flywheel with 164-tooth ring gear — compatible with the factory starter on 2011–2017 Mustang GT and Boss 302. Steel flywheel provides greater thermal mass than aluminum — better heat absorption for repeated hard launches and strip use. 164T tooth count is critical for starter compatibility — verify your vehicle’s starter before ordering if you have a non-stock starter
• Twin Disc Design – Increased Torque Capacity Over Single Disc: Twin-disc design doubles the friction surface area compared to a single-disc clutch — allowing significantly higher torque capacity without requiring the extreme clamp loads that make single-disc high-capacity clutches difficult to drive on the street
• Street-Friendly Engagement: Despite its 950HP rating, the RST HD is designed to retain acceptable street manners — progressive engagement, manageable pedal effort, and drivability in traffic. Not a race-only clutch — engineered for vehicles that see regular street use alongside performance driving
• McLeod Racing Quality: Manufactured by McLeod Racing — a respected American clutch and drivetrain specialist with decades of experience in performance and racing clutch systems for domestic V8 applications

Specifications

• Type: Twin Disc
• Friction: Hybrid — Full-Face Organic + Segmented Ceramic
• HP Rating: 950HP
• Flywheel: Steel, 164-Tooth (Included)
• Fitment: 2011–2017 Ford Mustang GT / Boss 302 5.0L Coyote
• Part Number: 6435825MD
• UPC: 887753894328

⚠️ Installation Notes: Professional installation by an experienced drivetrain specialist is strongly recommended — twin-disc clutch installation requires proper alignment, torque sequences, and break-in procedure. Clutch break-in procedure required after installation — avoid aggressive launches or full-throttle acceleration for the first 500 miles to allow friction surfaces to seat properly. Verify flywheel tooth count (164T) is compatible with your starter before ordering. Transmission fluid and rear main seal inspection recommended during installation. McLeod Racing’s installation instructions must be followed — improper installation voids warranty.