OER Parts offers a wide selection of Body Panels for your 1964 GMC 1500 Series. OER Parts offers 1964 GMC 1500 Series Truck Cab Components, 1964 GMC 1500 Series Stepside Cab - Complete, 1964 GMC 1500 Series Cab Panels - Partial, 1964 GMC 1500 Series Rear Outer Cab Panel, 1964 GMC 1500 Series Cab Corners, 1964 GMC 1500 Series Patch Panels, 1964 GMC 1500 Series Cab Floor Panel, 1964 GMC 1500 Series Rear Inner Window Panel, and 1964 GMC 1500 Series Windshield Pillar.