OER Parts offers a wide selection of Automatic Trans & Components for your 1975 Chevrolet C20. OER Parts offers 1975 Chevrolet C20 Complete Transmission, 1975 Chevrolet C20 Cooler Lines, 1975 Chevrolet C20 Dipsticks & Tubes, 1975 Chevrolet C20 Flex Plate, 1975 Chevrolet C20 Gaskets, Seals, Filters & Hardware 1975 Chevrolet C20 Modulator Valves, 1975 Chevrolet C20 Shift Knobs, 1975 Chevrolet C20 Shift Linkage, 1975 Chevrolet C20 Shifters - OE, 1975 Chevrolet C20 Shifters - Performance, 1975 Chevrolet C20 Torque Converter & Covers, 1975 Chevrolet C20 Transmission Pans, and 1975 Chevrolet C20 Vacuum Lines.