COA-22813A-SS – ALUMINUM FORWARD DRUM (7075 BILLET) W/ “SUPER SHAFT” ALLOY INPUT SHAFT, STEEL SEALING BORE SLEEVE, 4.7 LBS. (REQUIRES BUSHING IN TORQUE CONVERTER)

COA-22828 – NEW GM DIRECT DRUM ASSEMBLY WITH 34 ELEMENT BORG WARNER SPRAG, FITS 4L80E OR TH400, 5 OR 6 CLUTCH, MACHINED W/ 4 APPLY PASSAGES. PISTON AND CLUTCH KIT SOLD SEPERATELY. 6 CLUTCH USE COA-22830 PISTON W/ COA-22201 CLUTCH KIT. REQUIRES OEM PRESSURE PLATE, SNAPRINGS, W/ TH400 SPRING RETAINER AND SPRINGS. FOR TRANSBRAKE USE COA-22042 SPRING KIT.