I I 2 GM04 282 I 21 040987 1 9 I I I 7 I II I 1 WK g A I 1 I 2 11 i I gY 2 18 Y I I 1 I IR I kY zm F I I 17 I 0 I I I I j Q 19 I 12 I1I Q I 16 ig 3 y I 22 gy J 14 I I I xgg I 0 23 i 15 24 2 7 I as O 2 V I X 26 4 31 27 I Ik 28 K 1 I 32 I I x R K W 1 3 so I I 10 M70291aoo1 I GM04 282 1988 1989 H BRAKE BOOSTER VACUUM DUAL D APHRAGM DELCO NOTE SEE PARTS CATALOG FOR POWER BOOSTER CHART IN GROUP 4 901 I 1 4 659 BOOT 1 2 Q 2 N S SILENCER 1 2 3 3 N S VALVE VAC CHK 1 2 4 4 N S GROMMET 1 2 4 7 N S SEAL FRT HSG 1 2 8 N S BEARING PRIM PSTN 1 2 I 9 N S HOUSING RR 1 V 10 N S HOUSING FRT 1 1 1 N S SPRING RTN 1 12 4 924 ROD PSTN GAGED 1 13 N S RETAINER REACT ON 1 I I 14 N S SILENCER PWR HD 1 2 15 N S RETAINER D APH 1 2 Q 161 N S DIAPHRAGM PRIM 1 2 17 N S PLATE PR M SUPT 1 18 N S BEARING PSTN SECD 1 2 L 19 N S DIVIDER HSG 1 20 N S DIAPHRAGM SECD 1 2 21 N S PLATE SUPT SECD 1 Q I 22 N S DISC REACTION 1 2 5 I 23 N S PISTON REACTION 1 5 24 N S RETAINER BODY REACTION 1 3 5 25 N S BODY REACTION 1 5 I 26 N S SPRING A R VLV 1 3 27 N S BUMPER REACT ON 1 2 3 I 28 N S RING RET 1 2 3 29 N S FILTER 1 2 3 30 N S RETAINER 1 2 3 K iY 1993 GENERAL MOTORS SERVICE PARTS OPERAT 0NS 0I DSM 0BILE 32H j I 4 000 GROUP 4 148 2 93