Barnett Scorpion Low-Profile Lock-Up Clutch 608-30-33017Feature an all new, redesigned billet aluminum lock up pressure plate designed to fit under the stock primary cover No need to change or modify your cover Surface area is greatly increased and lever effort is kept to a minimum Three different coil spring sets included to provide a wide variety of spring pressure options allowing you to tune the clutch for stock to 200+ HP applications A steel inner hub is also included to complete the unit Designed to