OER Parts offers a wide selection of Automatic Trans & Components for your 1977 Buick LeSabre. OER Parts offers 1977 Buick LeSabre Complete Transmission, 1977 Buick LeSabre Cooler Lines, 1977 Buick LeSabre Dipsticks & Tubes, 1977 Buick LeSabre Flex Plate, 1977 Buick LeSabre Gaskets, Seals, Filters & Hardware 1977 Buick LeSabre Modulator Valves, 1977 Buick LeSabre Shift Knobs, 1977 Buick LeSabre Shift Linkage, 1977 Buick LeSabre Shifters - OE, 1977 Buick LeSabre Shifters - Performance, 1977 Buick LeSabre Torque Converter & Covers, 1977 Buick LeSabre Transmission Pans, and 1977 Buick LeSabre Vacuum Lines.