Brand: Advanced Clutch Technology Manufacturer's Part Number: SB7-HDG4 Part Type: Clutch Kits Product Line: ACT Heavy-Duty Clutch Kits Automotive Fittings Part Number: ACL-SB7-HDG4 UPC: 00842385021283 Clutch Usage: Performance Clutch Disc Quantity: 1 Flywheel Included: Yes Input Spline Quantity: 24 Input Shaft Diameter: 1.000 in. Disc Diameter (in.): 8.800 in. Disc Diameter (mm): 224mm Disc Material: Ceramic Disc Style: 4-paddle Hub Style: Sprung Pressure Plate Style: Diaphragm Throwout Bearing Included: Yes Alignment Tool Included: Yes Pilot Bushing Included: No Flywheel Material: Billet steel Ring Gear Tooth Quantity: 124-tooth Counterweight Assist: No Mounting Hardware Included: Yes Quantity: Sold as a kit. 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.