4 secnom 22 1973 79 TRUCK SERIES 100 500 YEAR MODEL RESTRICTIONS PART NUMBER DESCRIPTION TY 2B257 VALVE BRAKE PRESSURE DIFFERENTIAL Also refer to rou 15A851 Cont d 751 i F100 150 2 W1D 4 W D wrdrsc brakes DSTZ 28257 B it D5TA 28524 FA FB 1 F25O 2 W D w disc brakes 1 and 6200 GVW 73 F250 2 W D w disc brakes and C8TZ ZB257 G 1 6900 7500 and 8100 g V w l F350 vv disc brakes 1 74 V F25O 2 W D w disc brakes and D4TZ ZB257 A D4TA 2B328 A1A A2A D5TA 2B328 C1A C2A 1 6900 7500 and 8100 GVW BL 2 1 VV D wrdlsc brakes 1 11111 rm 41vr11 cw 222514 1 761 F2501 35O 4 VV D vv disc brakes DSTZ ZB257 B D5TA 2B524 FA FB 1 73 77 F500 w split H V brakes and dash C9TZ 2B257 A 1 mounted booster 73177 F500 w split H V brakes and C9TZ ZB257 B 1 frame mounted booster 121 14 114501 500 2 CQHZ 28257 4 1 13116 P350 400 CSTZ 2B257 A 1 2261 2 Refer to Front or Rear Brake Parts Lists Sections 20 1 or 22 1 2 2264 TUBE ASSY MASTER CYLINDER TO FRONT BRAKE CONNECTOR Im rovise from bulk tubin 2269 and im rovise insulators from rubber hose friction ta e etc L3 76 P400 5 L 370430 5 Il 108 tee 4 wa tube to brake tubes 1 73176 P35O X 357645 S ll 122 tee 4 wa tube to brake tubes 1 121 87943 36 1 21 man tube 7 16 24 AR 73 372130 36 MM 108 D nur tube 1 2 20 rr 1 4 AR 28264 SWITCH ASSY BRAKE PRESSURE DIFFERENTIAL VALVE WARNING LAMP Also refer to rou 15A851 LN B F M4s015oo w split H V brakes C9HZ ZBZ64 A 1 121 E100 300 F100 350 C8AZ 28264 A 1 73 76 P350 400 1 2265 TUBE ASSY BRAKE MASTER CYLINDER OR TUBE CONNECTOR TO REAR BRAKE HOSE Im rovise from bulk tubin 2269 and im rovise insulators from rubber hose friction ta e etc 73 77 B F500 382233 S 36 307 clip tubes to frame side member AR 1 4 x 1 4 73 E100 300 382372 S KK 64 A grommet used to insulate tube at 4 i cross member 73 87943 36 1 21 hmm woe 1 16 24 AR 73 372130 36 MM 10a 0 nut tube 1 2 2o k 1 4 AR 4 2265 A TUBE ASSY BRAKE and FUEL LINE lncl flared ends and fittin s D6AZ 2265 A 3 16 x 12 steel AR D6AZ 2265 C 3 16 x 20 steel AR B6A 2265 AC 3 16 30 steel AR B6A 2265 AD 3 16 x 40 steel AR D6AZ 2265 F 3 16 x 51 steel AR D6AZ 2265 G 3 16 x 60 steel AR B6A 2265 BA 1 4 x 12 steel AR B6A 2265 BB 1 4 x 20 steel AR D6AZ 2265 K 1 4 rr 20 steel AR i B6A 2265 BD 1 4 x 40 steel AR D6AZ 2265 M 1 4 x 51 steel AR D6AZ 2265 A 1 4 x 60 steel AR ZA265 STOP BRAKE BOOSTER SLAVE CYLINDER PISTON 73 77 B F em cm 2426M 1 2267 TUBE ASSY RIGHT REAR BRAKE Imgrovise from bulk tubin 2269 and im rovise insulators from rubber hose friction ta e etc 73 77 B F500 372130 36 MM 108 D nut attaches tubes to cyl inverted 1 j flared tube 73 177 B F500 381970 57 8 GG 272 cIip attaches tubes to rear axle doub e 1 1 4