| 50-7680 - Accumulator Update Kit Accumulator Update Kit for 1976-80 Chevrolet and GMC Truck Accumulator Update Kit for 134a Refrigerant This update kit is designed simplify retrofitting to 134a refrigerant on 1976-80 Chevrolet and GMC trucks. Kit includes original style fixed tube accumulator with 134a service port, cycling switch and orifice tube kit for 134a refrigerant. ... |