COA-22880A-AL-LU – “ULTIMATE XST LOCK-UP” KIT, INCLUDES 1-3/16″ 27 SPLINE “SUPER ALLOY” INPUT SHAFT, COMPLETE BILLET ALUMINUM PUMP ASSEMBLY W/ 29 SPLINE HEAT TREATED BOLT-IN STATOR, 7075 BILLET ALUMINUM FORWARD DRUM (ACCEPTS UP TO 9 FRICTIONS), REQUIRES CONVERTER W/ GM PUMP DRIVE, 29 SPLINE STATOR

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.