I 1 11 BRAKES 1 1 1 1 1 4 855 SPRING RETAINER Main Cylinder Return Con t 1 1 80 83 Ser 10 D D w P G 5300902 1 1 1 1 10 coils approx 3 free length 87 88 Ser 30 w 157 W B 11 000 1 I lb axle exc D D 1 j 87 1 Ser 30 D D 1 1 1 V 88 70 Ser 30 Brake Booster w 11 1 1 000 lb axle 1 3910007 1 Wagner FC 932 87 70 All Blazer exc Brake Booster I 71 G 10 thru 30 exc Brake 1 1 I I 1 1 Booster 5482837 2 1 1 1 check valve 71 72 Ser 30 Conv D D w 11 000 C 1 1 1 lb axle 3933993 1 1 Wagner FC 875583 I 71 72 Ser 10 Blazer 1 I 1 71 72 G 10 20 w Disc Brake E 5455515 1 secondary piston Moraine 71 Ser 10 Conv D D G 10 1 1 1 71 72 Ser 20 0 exc 11 000 Ib 1 1 1 1 axle 1 1 1 1 71 72 G 30 w Disc Brake 5472548 1 RETAINER w spring Moraine 87 70 Ser 20 30 exc 1 1 000 lb 1 I 1 1 axle Brake Booster D D 1 1 1 1 88 70 Ser 20 30 D D exc Brake 1 1 1 Booster 1 1 000 Ib axle 1 1 1 71 72 Ser 10 Blazer 1 1 71 72 G 10 20 w Disc Brake 1 1 1 71 G 30 w Drum Brake 5480827 11 1 RETAINER secondary piston spring 1 1 1 4 858 PLATE RING SCREW SEAL Mein Cylinder1Stop 1 1 187 88 Ser 30 w 157 W B 11 000 1 lb axle exc D D I 1 1 1 1 1 88 70 Ser 30 Brake Booster w 111 1 1 1 1 000 Ib exIe 1 3910004 1 I I D x 0 0 Wagner FC 57569 71 72 Ser 30 Conv D D w 111 000 1 1 1 lb axle 3889709 1 Wagner FC 55217 1 83 1er 110 thru 30 w Brake 1 1 Booster 1 1 1 1 1 84 G 10 I 1 84 88 Ser 10 20 exc D D 1 1 1 87 72 Ser 10 Blazer 1 1 1 1 1 87 72 G 10 20 1 1 5487358 1 1 RING lock 71 Ser I0 Conv D D G IO 72 Ser 10 Conv 4 WD Blazer 1 1 1 1 1 w Brake Booster 1478135 1 RING cyl lock Bendix 907881 87 72 All Blazer I 5484418 1 P SCREW stop Moraine 1 88 89 Ser 20 30 2nd design exc D 1 1 1 0 11 000 lb Sgl Spd axle I 88 891 Ser 20 30 D D 2nd design exc 11 000 lb axle 1 70 All Blazer 1482330 1 SEAL secondary piston stop bolt O ring 71 G 10 20 I 1 A 71 72 Ser 10 Conv D D a I 1 1 72 Ser 10 4 WD G I0 72 Ser 10 Conv 4 WD Blazer 1 I 1 1 M w Brake Booster L 1482330 1 1 SEAL 0 ring secondary piston stop bolt 1 1 I Bendix 618038 1 1 72 Ser 10 Conv 4 WD Blazer 4 8283171 1 SEAL main cyl secondary Bendix 1 I 2226989 1 I 1 4 857 VALVE Main Cylinder 1 1 38 52 1 Ton 1 5454320 1 check 2 dimples on inner retainer 1 84 G 110 1 1 1 1 84 Ser 10 20 exc D D 11 1 1 1 71 G 10 20 w 2 400 Ib axle 5489230 A R bleeder 4 886 L 87 70 Ser 10 thru 30 Blazer exc 1 1 000 lb Sgl Spd axle 1 1 1 71 G 10 20 1482313 2 VALVE ASSY residual check Bendix 818017 1 87 88 Ser 30 w 157 W B 11 000 1 lb axle exc D D 1 1 1 I 1 87 Ser 30 D D 1 1 1 88 71 S er 30 Brake Booster w 1 1 1 I 000 lb axle 3910008 1 1 VALVE ASSY check Wagner1FC 14425 A 87 89 G 10 20 1 1 I 1 87 89 Ser 10 exc Brake Booster 1 1 87 89 Ser 20 30 exc D D 11 000 1 lb axle Brake Booster 1 1 I 1 1GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TL i 1 4 855 4 857 1 1 1 4 194 1 1 1 REV 5 791 1