GM04 282 g I W 20 IT1 I 52 5 Egg I 2 X fw gl 1 y 1 I 8 2 I 18 xx 3 1 I R r R i rg 17 P I I i X I 16 i e 13 X w 1 8 1 22 gy J R 1 2 B 9 23 V X 2 33 25 L Q 26 31 9 I 27 Q X Q 28 32 UI r Q b 3 so Tg I 2g JP I I 1 10 0M702sE001 GM04 282 A 1988 F BRAKE BOOSTER VACUUM DUAL DIAPHRAGM MORAINE 1 N S BOOT 1 2 2 N S SILENCER 1 2 3 18 N S BEARING Piston Secd 1 2 3 N S VALVE Vacuum Check 1 2 19 N S DIVIDER Housing 1 4 20 N S DIAPHRAGM Secd 1 2 4 N S GROMMET 1 2 4 21 N S PLATE Support Secd 1 7 N S SEAL Frt Housing 1 2 22 N S DISC Reaction 1 2 5 8 N S BEARING Primary Piston 1 23 N S PISTON Reaction 1 5 2 24 N S RETAINER Body Reaction 9 N s H0usING FIear 1 1 3 5 10 N s HOUSING Frt 1 25 N s BODY Reaction 1 5 11 N S SPRING Return 1 26 N S SPRING Air Va ve 1 3 12 4 924 ROD Piston Gaged 1 27 N S BUMPER Reaction 1 2 3 13 N S RETAINER Reacti0n 1 28 N S RING Retainer 1 2 3 14 N s SILENCER Power Head 1 2 I 29 N s FILTER 1 2 3 15 N s RETAINER Diaphragm 1 2 30 N S RETAINER 1 2 3 16 N s DIAPHRAGM Primary 1 2 31 N s O RING 1 2 3 17 N S PLATE Primary Support 1 32 N S ROD ASM Air VaIve 1 3 33 N S PISTON Power 1 5 See Parts Catalog For POWER BOOSTER CHART At The End of the 4 000 Group NOTE 1 Group 4 901 Service POWER BOOSTER lncls 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 NOTE 3 Group 4 918 AIR VALVE KIT lncls 2 24 26 thru 32 NOTE 4 Group 4 955 VALVE GROMMET KIT lncls 3 4 NOTE 5 Group 4 922 PISTON KIT lncls 22 thru 25 33 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROL ET 17F 4 000 GROUP 4 62 I6 88