Glass Weatherstrip Lockstrip with 2 corner cover joints 75-86 Chevrolet C10, C20, C30, K10, K20, K30. 79-86 GMC C1500, C2500, C3500, K3500. 87 Chevrolet R10 4 Door, R20, R20 4 Door, R30, & R30 4 Door. Chevrolet V10 4 Door, V20 4 Door, V30 & V30 4 Door. GMC R1500, R2500, R3500, V1500, V2500 & V3500. 87-89 Chevrolet R3500 & V3500.