Reacts smoothly while engaging in street driving or transitioning to off road terrain Proprietary clutch cover increases static clamp load Maintains a stock like pedal effort and works with the stock release system Cover is cryogenically treated to stabilize pressure surface Provides high torque holding capability and superior heat resistance Jeep® Performance Clutch Set includes a Zoom-designed proprietary clutch cover with a nodular iron pressure ring that increases static clamp load by 30 % over stock. It maintains a stock-like pedal effort and works with the stock release system. The cover is cryogenically treated to stabilize pressure surface to virtually eliminate warping. In other words, you can repeatedly get it hot driving the trails and drive it home with no adverse effects to handling. Kevlar clutch disc offers high torque holding capability and superior heat resistance. Kit comes complete with cryogenically treated nodular iron flywheel and alignment tool. Bearings are sold separately.