Brand: Advanced Clutch Technology Manufacturer's Part Number: GM8-HDR6 Part Type: Clutch Kits Product Line: ACT Heavy-Duty Clutch Kits Automotive Fittings Part Number: ACL-GM8-HDR6 UPC: 00842385013219 Clutch Usage: Performance Clutch Disc Quantity: 1 Flywheel Included: No Input Spline Quantity: 26 Input Shaft Diameter: 1.125 in. Disc Diameter (in.): 10.500 in. Disc Diameter (mm): 267mm Disc Material: Ceramic Disc Style: 6-paddle Hub Style: Solid Pressure Plate Style: Diaphragm Throwout Bearing Included: Yes Alignment Tool Included: Yes Pilot Bushing Included: Yes Pilot Bushing Material: Brass Counterweight Assist: No Mounting Hardware Included: No Quantity: Sold as a kit. Notes: Fits models with 3-speed transmission only. 6-paddle solid center disc. Aggressive clutch engagement. Description: ACT heavy-duty clutch kits offer a clamp load increase of 20 to 50 percent over OEM, significantly increasing torque capacity. The pedal feel with these clutches varies from stock to a moderate increase. Available for street and race applications, many are SFI-certified to ensure safety.