OER Parts offers a wide selection of Manual Transmissions & Parts for your 1983 Buick Estate Wagon. OER Parts offers 1983 Buick Estate Wagon Bearings, 1983 Buick Estate Wagon Boots, 1983 Buick Estate Wagon Complete Transmissions, 1983 Buick Estate Wagon Flywheel, 1983 Buick Estate Wagon Gaskets, Seals & Filters, 1983 Buick Estate Wagon Gears, 1983 Buick Estate Wagon Hardware, 1983 Buick Estate Wagon Shift Knobs, 1983 Buick Estate Wagon Shift Linkage, 1983 Buick Estate Wagon OE Shifters, and 1983 Buick Estate Wagon Performance Shifters.