Years :
1973-1980 Chevrolet Truck Evaporator Kit (Factory Air) – 954175
1973-1980 Chevrolet Truck Evaporator Kit (Non-Factory Air) – 751175
1981-1987 Chevrolet Truck Evaporator Kit (Factory Air) – 754181
1981-1987 Chevrolet Truck Evaporator Kit (Non-Factory Air) – 751181