OER Parts offers a wide selection of Manual Transmissions & Parts for your 1964 GMC 1000 Series. OER Parts offers 1964 GMC 1000 Series Bearings, 1964 GMC 1000 Series Boots, 1964 GMC 1000 Series Complete Transmissions, 1964 GMC 1000 Series Flywheel, 1964 GMC 1000 Series Gaskets, Seals & Filters, 1964 GMC 1000 Series Gears, 1964 GMC 1000 Series Hardware, 1964 GMC 1000 Series Shift Knobs, 1964 GMC 1000 Series Shift Linkage, 1964 GMC 1000 Series OE Shifters, and 1964 GMC 1000 Series Performance Shifters.