OER Parts offers a wide selection of Dress Up Kits for your 1938 GMC Truck. OER Parts offers 1938 GMC Truck Valve Covers, 1938 GMC Truck Exhaust Manifolds, 1938 GMC Truck Intake Manifolds, 1938 GMC Truck Timing Covers, 1938 GMC Truck Water Pumps, 1938 GMC Truck Oil Pans, 1938 GMC Truck Custom Under Hood Mirrors, 1938 GMC Truck Radiator Support Show Panel, and more...