OER Parts offers a wide selection of Air Conditioning Parts for your 1966 GMC G1000 Series restoration project. OER Parts offers 1966 GMC G1000 Series Brackets and Hardware, 1966 GMC G1000 Series Compressors, 1966 GMC G1000 Series Condensers, 1966 GMC G1000 Series Evaporators, 1966 GMC G1000 Series Pressure and Vacuum Lines, 1966 GMC G1000 Series Pulleys and Clutches,1966 GMC G1000 Series Receiver Driers.