McLeod Racing RST HD Twin-Disc Clutch Kit – Metric Ring | 1997–2015 GM LS / 2001.5–2017 Ford Mustang 4.6L/5.0L | 950HP Rated

The McLeod RST HD Twin-Disc Clutch Kit is engineered for performance enthusiasts who demand more holding power than stock while maintaining excellent street manners. Positioned between McLeod's renowned RST and RXT twin-disc systems, the RST HD delivers an ideal balance of drivability and performance for enthusiasts with a more spirited driving style — rated for up to 950 horsepower. This is the Metric Ring version, designed to bolt to an existing compatible flywheel using the metric ring bolt pattern — no flywheel included. Fits 1997–2015 GM LS engines and 2001.5–2017 Ford Mustang 4.6L/5.0L with a 1-1/8" x 26-spline input shaft.

Key Features

• Hybrid Friction – Organic + Segmented Ceramic: At the core of the RST HD are dual performance discs with a hybrid friction combination. One disc utilizes full-face organic friction material for smooth, OEM-like engagement and durability under repeated street and strip use. The opposing disc features segmented ceramic friction material for increased bite and enhanced holding power when performance demands rise — the hybrid combination enables the RST HD to withstand aggressive driving conditions while preserving the street-friendly characteristics McLeod customers expect
• 950HP Rated – Street & Strip Capable: Rated for up to 950 horsepower — an ideal solution for high-horsepower LS and Mustang builds that see daily street use as well as weekend track duty. Bridges the gap between McLeod's RST (street-focused) and RXT (full race) twin-disc systems
• Metric Ring Version – Uses Existing Compatible Flywheel: The Metric Ring version is designed to bolt to an existing compatible flywheel using the metric ring bolt pattern — ideal for builds where a compatible flywheel is already in place. Verify your flywheel's compatibility with the RST HD Metric Ring before ordering. For a complete kit with flywheel, see McLeod's RST HD complete package options
• 1-1/8" x 26-Spline Input Shaft: Designed for transmissions with a 1-1/8" diameter, 26-spline input shaft — verify your specific transmission's input shaft diameter and spline count before ordering
• Broad Platform Coverage – GM LS & Ford Mustang: Fits 1997–2015 GM LS engine applications and 2001.5–2017 Ford Mustang 4.6L/5.0L — verify your specific vehicle, engine, and transmission combination before ordering
• McLeod Racing Quality: Manufactured by McLeod Racing — a leading US-based performance clutch manufacturer with decades of motorsport and street performance expertise, trusted by professional racers and high-horsepower enthusiasts worldwide

Specifications

• Type: Twin-Disc Clutch Kit
• Series: RST HD
• Version: Metric Ring (Flywheel Not Included)
• Friction: Hybrid — Full-Face Organic + Segmented Ceramic
• HP Rating: Up to 950HP
• Input Shaft: 1-1/8" x 26-Spline
• Fitment: 1997–2015 GM LS / 2001.5–2017 Ford Mustang 4.6L/5.0L
• Part Number: 6912-07MD

Note: Metric Ring version — flywheel not included. Verify your existing flywheel's compatibility with the RST HD Metric Ring bolt pattern before ordering. Verify your transmission's input shaft diameter (1-1/8") and spline count (26) before ordering. Verify your specific GM LS application or Mustang model year, engine, and transmission combination before ordering — clutch fitment is highly application-specific. Professional installation by an experienced drivetrain specialist is strongly recommended. Break-in procedure required after installation.