A GM04 256 I 081085 25 I 8 0 4 0 10 I 11 3 1 V N 5 15 y r 9 12 3 av I J h 16 A 4 I il v x I 1 x i 1 13 1 7 6 n1 1 10 GM04e258 1986 J BRAKE BOOSTER VACUUM SINGLE DIAPHRAGM MORAINE NOTE SEE PARTS CATALOG FOR POWER BOOSTER CHART AT THE END OF GROUP 4 000 1 N S BOOT 1 2 A I 2 N S SILENCER 1 3 N S VALVE VAC CHK 1 2 3 4 N S GROMMET 1 2 3 5 I 5 N S SEAL FRT HSG 1 2 8 N S BEARING PWR PSTN 1 2 7 N S HOUSING RR 1 8 N S HOUSING FRT 1 9 N S SPRING RTN 1 10 N S PISTON ROD KIT PWR BOOS 1 11 N S RETAINER REACTlON 1 12 N S FILTER 1 4 13 N S RETAINER D APH 1 2 14 N S DIAPHRAGM 1 2 15 N S SUPPORT D APH 1 16 N S POWER PISTON PUSH ROD ASM 1 4 25 N S SWITCH VAC SOME MODELS 1 2 5 NOTE 1 SERVICE PWR BOOSTER GROUP 4 901 INCLS 1 THRU 25 A NOTE 2 POWER BOOS REPAIR KIT GROUP 4 898 INCLS 1 3 4 5 6 13 14 25 NOTE 3 VALVE 81 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 J i i 1993 GENERAL MOTORS SERVICE PARTS 0PERATIONS CHEVROLET 17J 4 000 GROUP 4 100 4 93