For use on these Transmissions:Universal and will fit most common clutch drums up to 6" in size.For Turbo-hydramatic - 180 / 180CFor Turbo-hydramatic - 350 / 375 / 400 (3L80) / 425 / 475For Ford - C4, C5 & C6For Ford - AOD / AODEFor Ford - ATXFor Torqueflite "6" (904) / (30RH)For Torqueflite "8" (727) / (36RH)For GM - 700-R4 (Must be out of case. If you are working with it in the case you will need a T-0149.)For GM - 4L60, 4L60E, 4L65E, 4L70Features:Universal clutch drum spring compressor. Adjustable for most transmission types.6" long legs especially designed for deep drums. Similar to Atec Trans-Tool T-0158-HD.Applies pressure to the retaining washer in the clutch drum to compress the clutch piston return spring, in order to remove or install the snap ring during clutch repair or transmission overhaul.Note: Does not do rear case pistons.If your item is defective, incorrect, arrived damaged or any other problems, please send us emails. Describe the nature of the problem (please include pictures if possible). You will be taken care of as quickly as possible.