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