Engineered to handle the increased horsepower and torque of a modified engine, these performance clutch kits are the answer to clutch problems in today's muscle cars that are equipped with turbos or nitrous systems. Each kit contains a high performance diaphragm pressure plate to retain the factory pedal pressure and a sintered metallic button style clutch disc to increase the coefficient of friction for reduced slippage and greater holding power. Kit includes:Pressure Plate, Throwout Bearing, Disc, Alignment Tool & bolt kit. Part No. 85-100 utilizes a 10.5" diaphragm style clutch with a 1 1/8-10 spline. SEE CATALOG for applications.