OER Parts offers a wide selection of Air Conditioning and Heater Parts for your 1960 GMC 1000 Series. OER Parts offers 1960 GMC 1000 Series Air Conditioning and Heater Control Panels, 1960 GMC 1000 Series Air Conditioning and Heater Knobs, 1960 GMC 1000 Series Air Conditioning and Heater Levers and Cables, 1960 GMC 1000 Series Air Conditioning and Heater Relays, 1960 GMC 1000 Series Air Conditioning and Heater Switches.