I 1 D V V GM04 255 1 080885 21 1 1 1 1 1 9 1 V AQ 20 1 w V 1 00 1 1 1 1 2 r K Oh 18 Q w V 1 1 V V T v1x V 17 J I 1 V 19 12 16 Q I V 22 w j I 14 Q5 I 5 1 A x 1 1 23 1 24 V 5 7 33 25 1 1 Q 26 I 1 31 1 X I A 27 1 11 x rx 28 1 32 I 1 V gy V 1 3 R 1 1 5 14 9 V 1 l Q 1 1 x 1 10 1 V 11 A 0Ms1asE121 Z V n GMA04 255 1986 1987 H BRAKE BOOSTER VACUUM DUAL DIAPHRAGMXDELCO D NOTE SEE PARTS CATALOG FOR POWER BOOSTER CHART IN GROUP 4 901 1 N S BOOT ONLY SERVICED 1987 AND LATER 1 2 7 2 N S SILENCER 1 2 4 7 A 3 N S VALVE VAC CHK 1 2 3 A 4 N S GROMMET 1 2 3 1 5 N S SWITCH VAC SOME MODELS 1 2 5 6 N S GROMMET 1 2 5 7 N S SEAL FRT HSG 1 2 8 N S BEARING PRlM PSTN 1 2 9 N S HOUSING RR 1 V 1 10 N S HOUSING FRT 1 11 N S SPRING RTN 1 I L 12 4 924 ROD VAC PWR BOOS PSTN 1 13 N S RETAINER REACTlON 1 14 N S SILENCER PWR HD 1 2 4 I 1 1 15 N S RETAINER DIAPH 1 2 16 N S DIAPHRAGM PRIM 1 2 17 N S PLATE PRIM SUPT 1 18 N S BEARING PSTN SECD 1 2 1 19 N S DIVIDER HSG 1 1 1 1 20 N S DIAPHRAGM SECD 1 2 21 N S PLATE SUPT SEcD 1 22 N S DISC REACTION 1 2 6 23 N S PISTON REACTION 1 6 L 1 24 N S RETAINER BODY REACTlON 1 4 6 7 A 25 N S BODY REACTION 1 6 26 N S SPRING AIR VLV 1 4 1 27 N S BUMPER REACTION 1 2 4 1 28 N S RING RETAINING 1 2 4 1 V 1993 GENERAL MOTORS SERVICE PARTS OPERATIONS OLOSMOBII E 32H i i 4 000 GROUP 1 V 4 146 2 93