OER Parts offers a wide selection of Body Components for your 1979 GMC All Models. OER Parts offers 1979 GMC All Models Bumper Brackets, 1979 GMC All Models Filler Panels 1979 GMC All Models Guards & Bumperettes, 1979 GMC All Models Hardware, 1979 GMC All Models Impact Bar & Absorber, 1979 GMC All Models License Plate Brackets, Hardware & Frames 1979 GMC All Models License Plate Panel, 1979 GMC All Models License Plates, and 1979 GMC All Models Seals.