The Hays Diesel 650 clutch kits are an excellent upgrade from your stock clutch and designed handle Diesel engines with up to 650 ft. lbs. torque. It is a great clutch where drivability is the most important factor along with a stock pedal feel. Kit features a matched pressure plate and a heavy duty, high torque steel back clutch disc. This riveted clutch disc with advanced steel back friction material provides additional clamping force and superior strength. A reinforced steel backing allows for better heat dissipation delivering extended wear and quick recovery. The steel back facings are riveted to a marcel fin disc design which allows for smooth and positive engagement for street, towing, or heavy hauling applications. It offers up to 30% greater clamping force than a stock clutch allowing you to put more power to the ground and top quality materials allow for smooth, no-chatter engagement. HAYS, HAYS,Remember, Run with the Winners---Run with Hays!