OER Parts offers a wide selection of Manual Transmissions & Parts for your 1966 Chevrolet Biscayne. OER Parts offers 1966 Chevrolet Biscayne Bearings, 1966 Chevrolet Biscayne Boots, 1966 Chevrolet Biscayne Complete Transmissions, 1966 Chevrolet Biscayne Flywheel, 1966 Chevrolet Biscayne Gaskets, Seals & Filters, 1966 Chevrolet Biscayne Gears, 1966 Chevrolet Biscayne Hardware, 1966 Chevrolet Biscayne Shift Knobs, 1966 Chevrolet Biscayne Shift Linkage, 1966 Chevrolet Biscayne OE Shifters, and 1966 Chevrolet Biscayne Performance Shifters.