5 GM04 283 A 090292 1 9 I 18 1 5 SG I g J 4 A i 11 1 1 A I 1 I r 1 T1 14 5 OI I I L un V 13 Q 1 1 M A J I 9 Q 1 10 X I 19 I I I I 11 I I 21 20 5 I 5 22 2 I 30 2524 7 hg 1 12 LL I 28 Q 99 L 1 8 0 4 A 27 E 9 g W 5 1 DM61 E250 EE 1 GM04 283 1988 1989 W BRAKE BOOSTER VAC1J l HR p0ll E1 DIAPHRAGM W CAM LOCK HSG NOTE SEE PARTS CATALOG FOR POWER BOOSTER CHART GROUP 4 650 1 4 659 BOOT 1 2 I 2 N S VALVE VACUUM CHECK 1 2 4 3 N S GROMMET 1 2 3 4 N S SEAL FRT HOUSING 1 2 5 N S BEARING PRIM PISTON 1 2 6 N S HOUSING RR 1 I 7 N S HOUSING FRT 1 8 N S SPRING RETURN 1 4 13 4 92 ROD P TON G AGED 1 I N RETAIN R REA TION 1 11 N S SILENCER POWER HEAD 1 2 I 12 N S RETAINER DIAPHRAGM 1 2 l A 13 N S DIAPHRAGM PRIMARY 1 2 14 N S PLATE PRIMARY SUPT 1 2 1 gE 1IgI lRG PISTON 1 2 1 I 17 N S DIAPHRAGM SECONDARY 1 2 18 N S PLATE SECONDARY SUPT 1 19 N S DISC REACTION 1 2 5 A 20 N S PISTON REACTION 1 5 21 N S RETAINER REACTION BODY 1 3 5 22 N S BODY REACTION 1 5 I I 23 N S SPRING AIR VALVE 1 3 I L 1993 GENERAL MOTORS SERVICE PARTS OPERATIONS PONTIAC 25W L 6 93 4 169 4 000 GROUP