8 I I I GMO4 25 5 080885 7 E 21 8 1 V J W wl Q 2 8 I i 8 1 V1 Q 8 Y Q 8 A 8 8 8 8 5 18 N g 1 V I IE I m v A 8 17 Q QW 8 A 9 A 2 1 8 Q 13 y 16 RT Q 3 22 8 y J A I 14 8 2 3 A 1 21 5 7 1 I IS 33 I 8 25 l 8 8 E Q 26 31 1 I 1 zv 8 g B 28 1 1 Q 8 K 32 I A I A 4 3 3O I I I 6 A I 29 Q I Q I A P JO l V V 11 U W oMs1asE121 I GM04 255 E 1982 87 J BRAKE BOOSTER VACUUM DUAL DIAPHRAGM MORAI NE 1 BOOT 1 2 7 8 N S 2 SILENCER 1 2 4 8 N S I 3 VALVE Vacuum Check 1 2 3 N S 4 GROMMET 1 2 3 N S 5 SWITCH Vacuum Some ModcIs 1 2 5 8 N S I 6 GROMMET 1 2 5 4 3 I N S 7 SEAL Frt Housing 1 2 1 8 N S 8 BEARING Prim Piston 1 2 N S 9 HOUSING Rr 1 I N S 10 HOUSING Frt 1 I N S A 11 SPRING Return 1 N S 12 ROD Vac Pwr Boos Piston 1 4 924 13 RETAINER Reaction 1 N S A 14 SILENCER Power Head 1 2 4 N S 15 RETAINER Diaphragm 1 2 N S 16 DIAPHRAGM Prim 1 2 N S 17 PLATE Prim Support 1 N S 18 BEARING Piston Secd 1 2 N S 19 DIVIDER Housing 1 8 N S 20 DIAPHRAGM Secd 1 2 N S 21 PLATE Support Secd 1 N S 22 DISC REACTION 1 2 6 N S 8 23 PISTON Reaction 1 6 J N S 24 RETAINER Body Rc action 1 4 6 N S 25 BODY REACTION 1 6 N S 26 SPRING Air Va ve 1 4 N S 27 BUMPER Reaction 1 2 4 N S 28 RING Retaining 1 2 4 N S 29 FILTER 1 2 4 1 N S 2 30 RETAINER 1 4 N S 7 L 1 1989 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44J 4 000 GROU P 4 68 1 10 89