2 secnou 23 1973 79 TRUCK SERIES 100 500 YEAR MODEL RESTRICTIONS PART NUMBER DESCRIPTION TY 2320 BRACKET BRAKE AIR RESERVOIR MOUNTING Cont d 77 BBOO w7spnt H7v brakes D5TZ 2320 A 4 and frame mtd booster 28323 Refer to group 2269 2324 32 Refer to Booster Parts Lists Section 23 1 2B324 WIRE ASSY BRAKE WARNING LAMP EXTERIOR 75 osuz ZB324 A 115uB 2B224 4A 1 74 F100 250 4 W D D4TZ 2B324 A D4TB 28224 AA 1 77 F100 350 27vv7D D7TZ 28324 A D7TB 28324 AA 1 2333 Refer to Rear Brake Parts Lists Section 22 1 28333 Refer to Front Brake Parts List Section 20 1 2 2333 TUBE ASSY BRAKE VACUUM BOOSTER CONTROL VALVE TO CENTER CONTROL VALVE Replacement tube exc as indicated by part number are to be made from bulk tubing stock listed by size and part number under group 2269 ZA335 TUBE ASSY FRONT BRAKE CYLINDER CONNECTION Replacement tube exc as indicated by part number are to be made from bulk tubing stock listed by size and part number under group 2269 2336 HOSE BRAKE VACUUM For a Iication not listed cut from bulk hose 4090 74 D4TZ 2336 0 2 174 1 0 X 2 278 oo 7 eo 174 lon 1 2337 Refer to Section 23 1 2 2337 8 TUBE ASSY BRAKE VACUUM BOOSTER CONTROL VALVE TO HYDRAULIC CYLINDER Replacement tube exc as indicated by part number are to be made from bulk tubing stock listed by size and part number under group 2269 V ZB338 Refer to Front Brake Parts List Section 20 1 28340 Refer to Front Brake Parts List Section 20 1 2K34O BRACKET BRAKE HOSE LOCATION Also refer to rou 2082 72774 E100 300 DBUZ ZK340 A 2 757 E100 350 D5UZ 2K340 A 2 73 F1 735 DZTZ 2l 340 A 2