7 T4B 11 E v R I I e Il l I Riu Il I f I 6 QR 3 V 9 7 2 MANUAL BRAKES e JBA G Q I Q cs 1 K 3 I Q Q r 4 4 4 5 g I I lv 8 VACUUM POWER BRAKES JB 3 JB 5 JB 6 JB 7 T4B 1I 1974 78 P BRAKE PUSH ROD EXC HYDRA BOOST EXC MHC 1 COTTER PIN 1 4 x I 1 4 4 4 8 938 2 NUT 3 8 24 8 919 3 BOLT 3 8 24 x I 8 900 4 END Pedal Push Rad 4 658 5 NUT 7 I6 20 8 9IS 6 ROD Pedal Push 4 638 I BOOT Brake Pedal Push Rad 4 859 8 CYLINDER Vacuum Power Brake 4 901 9 CYLINDER Hyd Brake Main 4 650 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORAT ON LT TRUCK 51A 2 83 uu 4 000 GROUP