Spec Clutch SM063 Stage 3 Performance Clutch Kit

The SPEC SM063 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand aggressive torque capacity without sacrificing daily drivability. Designed for drivers who push their vehicles hard across multiple disciplines, the Stage 3 delivers a comfortable pedal feel and quick, confident engagement while maintaining excellent wear characteristics under both low and high-stress conditions.

At the heart of the Stage 3 is a carbon semi-metallic puck disc — the industry-leading puck clutch design recognized for its superior balance of drivability, service life, and torque capacity. The disc features a high-torque sprung hub assembly with double-sprung construction and spring cover reliefs for flexibility, plus heat-treated components for long-term strength and durability.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic 4 or 6-puck sprung hub disc (6-puck standard on most applications; 4-puck available by specification at time of ordering)
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Intended Driving Applications:

• Street Performance
• Drag Racing
• Drifting
• Road Racing
• Rallye
• Pulling
• Autocross

All SPEC clutch products are designed, hand-built, and tested in the U.S.A. to ensure consistent performance and quality.