O A V T l cmu zaz 2 040987 g x I V it 20 A I 1 J 7x I 2 I I 2 V I I Ql Q V A 1 I e E 18 W 1 r I 17 V V V 19 I2 1 1 5 5 16 Q 13 y IN V Nm 22 y J I 14 n 9 I 5 K 23 I 15 H A 24 A I 7 33 25 A Q V 26 31 I I 27 2 Q 28 32 I 1 y 8 1 so I q 0 I 29 DM7029E A W1 I GM04 282 1988 B BRAKE BOOSTER VACUUM DUAL DIAPHRAGM MORAINE 1 1988 G BRAKE BOOSTERNACUUM DUAL DIAPHRAGM MORAINE 1989 B BRAKE BOOSTERNACUUM DUAL DIAPHRAGM MORAINE 1 NOTE SEE PARTS CATALOG FOR POWER BOOSTER CHART IN GROUP 4 901 A 1 4 659 BOOT 1 2 2 N S SILENCER 1 2 3 3 N S VALVE VACUUM CHECK 1 2 4 4 N S GROMMET 1 2 4 V 7 N S SEAL FRT HOUSlNG 1 2 8 N S BEARING PRIMARY P STON 1 2 9 N S HOUSING REAR 1 1 1 10 N S HOUSING FRT 1 11 N S SPRING RETURN 1 12 4 924 ROD PISTON GAGED 1 13 N S RETAINER REACT ON 1 14 N S SILENCER POWER HEAD 1 2 I 15 N S RETAINER DIAPHRAGM 1 2 V 16 N S DIAPHRAGM PRIMARY 1 2 17 N S PLATE PRIMARY SUPPORT 1 18 N S BEARING PISTON SECD 1 2 19 N S DIVIDER HOUSING 1 20 N S DIAPHRAGM SECD 1 2 21 N S PLATE SUPPORT SECD 1 22 N S DISC REACT ON 1 2 5 23 N S PISTON REACTION 1 5 Q 24 N S RETAINER BODY REACTION 1 3 5 25 N S BODY REACTI ON 1 5 26 N S SPRING AIR VALVE 1 3 V 27 N S BUMPER REACT ON 1 2 3 28 N S RING RETA NER 1 2 3 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS OLDSMOBILrE 32W 4 000 GROU P 4 122 6 9 1