Spec Clutch SM884-3 Stage 4 Clutch Kit - 3-Puck Solid Hub Carbon-Graphite

The SPEC SM884-3 Stage 4 Clutch Kit is a high-performance, solid hub clutch designed for drivers who demand maximum torque capacity and durability. Built as the solid hub evolution of the Stage 3, this kit features a solid 8-rivet hub with a heat-treated assembly for exceptional strength under demanding race conditions.

The SM884-3 is the 3-puck configuration, making it the lightest puck option in the Stage 4 lineup. For reference, the 4-puck version offers a balance of weight and engagement smoothness, while the 6-puck provides the smoothest engagement and remains street-drivable — though the rigid hub design means none of the Stage 4 variants are considered street-friendly for daily driving.

Key Features:

• Solid 8-rivet hub — heat-treated for maximum strength and durability
• High-clamp pressure plate for increased clamping force and torque capacity
• Carbon-graphite friction material on the 3-puck disc assembly
• High-torque solid hub and disc assembly built for rigid, high-performance engagement
• Bearing and tool kit included for complete installation
• Available in 3-puck (lightest), 4-puck (balanced), and 6-puck (smoothest) configurations

The Stage 4 kit is ideally suited for drag racing, road racing, rally, drifting, and pulling applications where maximum torque transfer and a rigid drivetrain connection are required over everyday street comfort.