GM04 256 081085 1 25 2 I A 4 5 8V 9 3 I S 10 1 11 I Y 3 raiT 6 I I A l I 15 J j g 12 Z F 11 1 16 I 1 Y I 2 1 1 3 A 1 S E L 7 1 6 A ananou 1I A GM04 256 1987 G BRAKE BOOSTERNACUUM SINGiLE DIAPHRAGM MORAINE NOTE SEE PARTS CATALOG FOR POWER BOOSTER CHART AT THE END OF GROUP 4 000 1 N S BOOT 1 2 V 2 N S SILENCER 1 L 3 N S VALVE VACUUM CHECK 1 2 3 Q 4 N S GROMMET 1 2 3 5 5 N S SEAL FRT HOUS NG 1 2 1 6 N S BEARING POWER PISTON 1 2 F 7 N S HOUSING RR 1 8 N S HOUSING FRT 1 9 N S SPRI NG RETURN 1 10 N S PISTON ROD KIT PWR BOOS 1 11 N S RETAINER REACTION 1 12 N S FILTER 1 4 13 N S RETAINER D APHRAGM 1 2 14 N S DIAPHRAGM 1 2 15 N S SUPPORT DIAPHRAGM 1 16 N S POWER PISTON PUSH ROD ASM 1 4 25 N S SWITCH VACUUM SOME MODELS 1 2 5 NOTE 1 SERVICE PWR BOOSTER GROUP 4 901 INCLS 1 THRU 25 k NOTE 2 POWER BOOS REPAIR KIT GROUP 4 898 INCLS 1 3 4 5 5 13 14 25 NOTE 3 VALVE GROMMET GROUP 4 955 INCLS 3 4 NOTE 4 PISTON KIT GROUP 4 922 INCLS 12 16 NOTE 5 VACUUM SWITCH KIT GROUP 4 906 INCLS 4 25 1991 GENERAL MOTORS SERVICE PARTS 0PERAT ONS 0LDSMOB LE 32W L it 6 9 1 4 121 4 000 GROUP