Scorpion Clutch Assembly With Lock-UpLock up head, bolt on basket100% more surface areaFeatures an all-new, redesigned billet aluminum lock-up pressure plate designed to fit under the stock primary coverNo need to change or modify your coverSurface area is greatly increased and lever effort is kept to a minimumThree 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 applicationsScorpion clutch basket and a steel inner hub is also included to complete the unitBillet aluminum pressure plateAdjustable pressure arms increase spring pressure as RPM increaseCan be run wet or drySmooth, precise shiftingMade in the USA