40 SECTION 103 1973 79 TRUCK SERIES 100 500 YEAR MODEL RESTRICTIONS PART NUMBER DESCRIPTION TY 10B942 WIRING INSTRUMENT CLUSTER Also refer to rou 14398 Cont d 75 F100 350 81 DSTZ 10B942 A D5TB 10B942 AA use on instrument cluster 1 w ammeter and oil pressure gauges 14401 to HI BEAM and LOW FUEL ECONOMY Iam s 108944 GAUGE KIT ENGINE VACUUM 73 F100 250 D4AZ 108944 B 1 10A962 LAMP and WIRING ASSY BRAKE WARNING 73 77 8500 w dual hydraulic C8TZ 1OA 2 A C8TB 2B318 A Brake curved 1 brakes Before Ser Y00 001 lettering on bezel 73 76 F350 84 1 77 F500 84 w dual hydraulic 1 brakes 73 77 F500 81 w dual hydraulic C8TZ 10A 2 C C8TB 2B318 C Brake straight lettering on 1 vacuum brakes ens incI COAZ 10A840 A bezel 77 B500 w dual D7HZ 10A 2 A D7TB 2B318 AA Brake straight lettering on 1 h draulic brakes From Ser Y00 001 lens incl D7HZ 10A840 A bezel V