Our billet inner hub eliminates the back torque limiter on the stock inner hub and works with our lockup unit. The two units are designed to work together and achieve the correct clearance between the lockup and the pressure plate. You might be able to get the lockup to bolt onto the stock hub but it will not function. We have not tested functionality with any of the one piece clutch mods on the market. If you have one of these mods, please contact the manufacturer in regard to compatibility with MTC lockups.