ACT Sport/Race Rigid 4 Pad Kit TC1-SPR4 kit features a Sport pressure plate for a nice upgrade. ACT Sport pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT’s 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines. Features Product Weight (lbs.): 11.4 Torque Capacity (ft/lbs.): 285 Torque Capacity Over OE: 0.59 Pressure Plate Type: Sport Release Bearing Included: Yes Clutch Disc Diameter (in.): 8.3 Clutch Disc Diameter (mm): 212 Disc Material: Ceramic Input Spline Quantity: 21 Input Shaft Diameter (in.): 0.9375 Alignment Tool Included: Yes Applications 1990-1991 Geo Prizm 1990-1991 Toyota Celica 1985-1989 Toyota MR2 1989-1991 Toyota Corolla What’s In The Box? Clutch Friction Disc (4212003) Clutch Alignment Tool (ATK73) Clutch Release Bearing (RB371) Clutch Pressure Plate (T030S) References Installation Instructions Warranty Manufacturer 1 Year Warranty