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