BRAKES 68 69 Ser 20 30 D D 2nd de sign exc 11 000 Ib ax e A 70 All Blzzer 1482330 1 35 SEAIL secondary piston stop bolt 0 ring 4 657 VALVE CUP ASSY WASHER Mein Cylinder 38 50 V1 TOD 63 65 Ser 10 thru 30 w Brake Booster 64 65 G 10 65 66 Ser 10 20 exc D D 54531711 1 41 check 38 52 V 1 Ton 5454 320 1 69 check 2 dimples on inner retainer 51 52 V2 Ton 53 55 Comm 1st Ser 55 59 Ser 3 2nd Ser 60 63 Ser 10 thru 30 exc Brake Booster 64 66 Ser 20 30 D D 64 65 Ser 10 D D w P G 5453854 1 64 check w spring 64 G 10 64 Ser 10 20 exc D D 5469230A R 23 bleeder 4 666 63 66 Ser 10 thru 30 65 66 G 10 534082 1 85 VAl VE ASSY check O D 4 lugs on 0 D Bendix 308815 67 70 Ser 10 thru 30 Blazer exc 11 000 Ib Sgl Spd axle 1482313 2 60 VAl VE ASSY residual check Bendix 618017 67 68 Ser 30 w 157 W B 11 000 Ib axle exc D D 67 Ser 30 D D 68 70 Ser 30 Brake Booster w 11 000 Ib axle 3910008 1 40 VAl VE ASSY check Wagner FC 14425 A 67 69 G 10 20 67 69 Ser 10 exc Brake Booster 67 69 Ser 20 30 exc D D 11 000 lb axle Brake Booster 68 69 Ser 20 30 D D exc Brake Booster 11 00 Ib axle 70 All Blazer 5462642 A R 49 VAILVE ASSY check 38 52 V2 Ton K 53 55 Comm 1st Ser 55 59 Ser 3 2nd Ser 60 62 D D 63 66 Ser 20 30 D D 5450150 1 41 WASHER l D x 1 O D 63 65 Ser 10 thru 30 w Brake Booster 64 65 G 10 65 66 Ser 10 20 exc D D 5456123 1 39 WASHER valve seat V2 D x V z 0 D 60 61 Ser 10 thru 30 exc D D P G 62 65 Ser 10 thru 30 exc D D 4 WD 64 66 Ser 10 D D w P G 64 66 Ser 10 thru 30 FFC 5459323 1 39 WASHER 1 Vi 0 D x 1 4 0 D 4 658 ROD END RETAlNER VALVE ASSY WASHER Main Cylinder Push 38 50 Comm exc V Ton 51 55 Comm 1st Ser 55 62 D D 2nd Ser 63 66 Ser 20 30 D D 5450076 1 54 V 24 x 1 thd 3 0 L Note 1 NOTE 1 On series R S use 5300914 piston stop plate 63 65 Ser 10 20 exc D D FFC Brake Booster 3822670 1 75 63 Ser 10 thru 30 w Brake Booster 1st design 3823122 1 75 89 iq 0 L 63 66 Ser 10 thru 30 w Brake Booster 2nd design 66 Ser 10 thru 30 exc D D 4 WD 3838186 1 75 8 0 L 64 66 G 10 3771990 1 65 4 V z 0 L 67 70 G 10 20 391I6825 1 85 main cyl push 67 Ser 30 D D 391 0012 1 80 main cyl push Wagner FC 57648 T 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 31 REV 6 71 4 227 4 656 4 658