4P 26004 1979 82 VACUUM POWER CYLINDER W DUAL POWER HEAD DELCO MORAINE 4 901 1 KIT VACUUM CHECK VALVE INCL GROMMET 84 VALVE 4 955 2 KIT ELBOW FITTING INCL GROMMET ELBOW FITTING B4 CAP 4 931 3 SEAL FRONT HOUSING SEE NOTE 1 N S 4 KIT CONTROL VALVE 4 940 5 SEAL DOUBLE LIP SEE NOTE 1 N S G RING POWER PISTON LOCK N S 7 RETAINER REACTION N S 8 SLEEVE CONTROL VALVE N S 9 PLATE VALVE REACTION N S 10 LEVER VALVE REACTION N S 11 SPRING AIR VALVE N S 12 RETAINER AIR VALVE SPRING N S 13 RING EXTERNAL RETAINER N S 14 PISTON POWER 4 810 15 HOUSING ASM FRONT POWER HEAD N S 16 SPRING RETURN N S 17 KIT HOUSING CLAMP INCL BOLT NUT 4 906 18 SUPPORT DIAPHRAGM N S 19 DIAPHRAGM POWER PISTON 4 922 20 HOUSING ASM REAR POWER HEAD N S 21 BEARING POWER PISTON PRIMARY SEE NOTE 1 N S 22 VALVE ASM AIR N S 23 SEAL 0 R NG SEE NOTE I N S 24 ROD PUSH N S 25 VALVE ASM FLOATING CONTROL SEE NOTE I N S 26 SPRING CONTROL VALVE N S 27 RETAINER CONTROL VALVE SPRING SEE NOTE 1 N S 28 RETAINER FLOATING CONTROL VALVE SEE NOTE I N S 29 KIT BOOT INCL BOOT FILTER SILENCER 4 651 NOTE 1 PART OF 4 901 KIT VACUUM POWER HEAD REPAIR W AREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION B2TM GR F 7 83 4G 217 4 000 GROUP