2 SECTION 120 1973 79 TRUCK SERIES 100 500 up gl 5 0 5 Q I I ii I TYPE 3 if TYPE 1 TYPE A TYPEI P IODOJ ENGINE YEAR MODEL RESTRICTIONS CYL C l D PART NUMBER DESCRIPTION QTY C C D l2A091 VALVE ASSY DISTRIBUTOR VACUUM CONTROL Also refer to rou 90473 PARTS ARE LISTED ACCORDING TO VEHICLE ENGINE TRANSMISSION AND AVAILABLE EQUIPMENT HOWEVER DUE T0 VARIANCES IN CALIBRATION IT IS ESSENTIAL THAT PART NUMBER IDENTIFICATION OF THE REPLACED PART BE THE SAME AS ONE OF THE IDENTIFICATION NUMBERS LISTED IN THE DESCRIPTION COLUMN OF THE RELATED SERVICE PART NUMBER TYPE 2 73 F100 I2 vv D 6828 All CSAZ 12A091 A DY l26 1 73 F250 350 w super cooling 6818 All I 73 E300 A C 8 302 Use with auxiliaw evaporator I 73 FI00 2 W D w super 8 360 390 I c00Hng 73 74 F100 8 360 390 1 74 E100 300 A T 8 302 1 74 F100 A T 8 302 1 74 E300 89 A M T and A C 8 302 1 74 F100 M T and A C 8 302 1 74 F100 8 460 1 75 F100 350 4 A C 8 360 390 1 74 M450 500 8 460 1 75 76 E250 350 8 460 1 75 76 8150 350 A c 8 351 1 76 F100 Calif 8 302 1 75 EIOO w Calif emission 8 351W D7AZ 12A091 A DY 165 A 1 75 F150 350 8 460 1 77 E250 350 8 460 1 78 F150 250 A C exc Calif 8 460 1 78 F350 8 460 1 78 E150 250 M T Calif 8 351W 1 77 F150 350 8 400 1 77 F350 8 351M 1 77 F150 250 M T 8 351M 1 79 FIOO A T Ca if emission 8 351 1 is F350 D5VY 12A091 A DY 165 05v E AA 1