2 A V 2 V GM04 282 2 4 g 2 I 4 1 V 20 l 2 S 4 Lrv V 2 8 V V 7 2 V 4 1 S I I 18 ft 2 V V 1 I Y 1 v 1 2 M Y QJ 9 2 2 X vow 2 1 I 1 2 16 T Q 2 13 y 411 2 V V V 4 22 V 4 14 2 2 2 5 2 4 ox 23 4 4 2 2 24 2 15 2 7 4 33 2 25 2 g 4 4 j 0 26 4 2 A 3 I 27 4 2 4 4 I I 1 32 V Q Q V I V 4 3 V2 02 V 4 2 I 4 3 4 V 2J V V I 2 1 I 10 2 A 4 V 4 V 4 4 V DM7029E001 V I GM04 282 2 1988 J BRAKE BOOSTER VACUUM DUAL DIAPHVRAGMXMORAINE I V V 4 1 BOOT 1 2 2 4 4 659 18 BEARING Piston Secd 1 2 N S 2 SILENCER 1 2 3 4 N S 19 DIVIDER H0using f 1 N S 3 VALVE Vacuum Check 1 2 4 42N S 20 DIAPHRAGM Secd I 2 V 2 2 N S 2 4 GROMMET 1 2 4 4 I N S 21 PLATE support Seod 1 V N S 7 SEAL Frt Housing 1 2 N S I 22 DISC Reaction 1 2 5 I N S 8 BEARING Primary Piston 1 2 NV S 23 PISTON Rea0tion 1 5 I N S 9 HOUSING Rear 1 N S 2 24 RETAINER Body Roaction 1 3 5 N S 10 HOUSING Frt 1 2 N s V 25 BODY Reaotion 41 5 4 N S 1 1 SPRING Return 1 N S 26 SPRING Air VaIve 1 3 2 2 N S 12 ROD Piston Gaged 1 2 4 924 27 BUMPER Reacti n 1 2 3 N S 13 RETAINER Reaction 1 N S 28 RING Retainer 1 2 3 N S 14 SILENOER Power Head 1 2 N s 29 FILTER 1 2 3 2 N S 15 RETAINER Diaphragm 1 2 2 N S 30 RETAINER 1 2 3 N S 16 DIAPHRAGM Primary 1 2 N S 31 O RING 1 2 3 N S 17 PLATE Primary Support 1 N S 32 ROD ASM Air VaIve 1 3 N S 33 PISTON Power 1 5 4 N S See CHART in Group for usage 2 V NOTE 1 Group 4 901 Service POWER BOOSTER IncIs 1 thru 33 NOTE 2 Group 4 898 REPAIR KIT Pwr Booster lncls 1 thru 8 14 15 16 18 20 22 27 28 29 30 2 NOTE 3 Group 4 918 VALVE Kl7j Air ncls 2 24 26 thru 32 2 NOTE 4 Group 4 955 VALVE K T W Grommet lncls 3 4 2 I NOTE 5 Group 4 922 PISTON KIT Inc s 22 thru 25 33 2 V V 1 1989 GENERAL MOTORS SERVICE PARTS OPEFIATIONS OLDSMOBILE 32 I A 4 000 GROUP 4 62 I 2 2 V 4 89