Gasket for Aftermarket Rear Sliding Window Glass Back Slider Compatible with Chevrolet/GMC C-Series K-Series Pickup 1973-1987 ModelsGasket For Aftermarket Rear Sliding Window Glass Back Slider Compatible with Chevrolet GMC C Series K Series Pickup 1973 1987 Models FEATURES Compatible Models: 1973 1980 C Series Pickup, 1973 1980 K Series Pickup, 1981 1986 Pickup C10, 1981 1986 Pickup C20, 1981 1986 Pickup K10, 1981 1986 Pickup K20, 1981 1986 Pickup K30, 1987 1988 Pickup R20, 1987 1989 Pickup R2500, 1987 1991 Pickup R3500 V3500 Aftermarket Slider Item Detail: Gasket for Aftermarket