Spec Clutch SJ384 Stage 4 High-Performance Clutch Kit

The Spec Clutch SJ384 Stage 4 Clutch Kit is a race-focused, solid hub upgrade over the Stage 3, engineered for maximum torque capacity and durability under extreme performance conditions. The solid 8-rivet hub and heat-treated disc assembly deliver the structural integrity required for high-demand motorsport applications including drag racing, road racing, pulling, rallye, and drift.

Available in 3, 4, or 6-puck configurations to match your specific performance needs — use the 3-puck disc for the lightest rotating assembly, the 6-puck disc for the smoothest engagement (and the only configuration suitable for limited street use), or the 4-puck disc as a balanced compromise between the two. Note: due to the rigid solid hub design, this clutch is not considered street-friendly regardless of puck configuration.

Key Features:

• High-clamp, non-ratcheting pressure plate for maximum holding power
• Carbon-graphite friction material for aggressive grip and heat resistance
• Solid 8-rivet hub disc assembly — heat-treated for strength and durability
• Available in 3-puck, 4-puck, or 6-puck configurations
• Includes release bearing and installation tool kit
• Designed, hand-built, and tested in the U.S.A.

Recommended Applications: Drag racing, road racing, autocross, pulling, rallye, and drift. Limited street use in 6-puck configuration only.