OER Parts offers a wide selection of Body Panels for your 1954 GMC 100. OER Parts offers 1954 GMC 100 Cowl Panels, 1954 GMC 100 Cowl Drain Flap, 1954 GMC 100 Side Cowl Panel, 1954 GMC 100 Cowl Panel Plugs , 1954 GMC 100 Cowl Drain Hose, and 1954 GMC 100 Cowl Gasket.