OER Parts offers a wide selection of Automatic Trans & Components for your 1939 Buick Limited Series 90. OER Parts offers 1939 Buick Limited Series 90 Complete Transmission, 1939 Buick Limited Series 90 Cooler Lines, 1939 Buick Limited Series 90 Dipsticks & Tubes, 1939 Buick Limited Series 90 Flex Plate, 1939 Buick Limited Series 90 Gaskets, Seals, Filters & Hardware 1939 Buick Limited Series 90 Modulator Valves, 1939 Buick Limited Series 90 Shift Knobs, 1939 Buick Limited Series 90 Shift Linkage, 1939 Buick Limited Series 90 Shifters - OE, 1939 Buick Limited Series 90 Shifters - Performance, 1939 Buick Limited Series 90 Torque Converter & Covers, 1939 Buick Limited Series 90 Transmission Pans, and 1939 Buick Limited Series 90 Vacuum Lines.