OER Parts offers a wide selection of Dress Up Kits for your 1988 GMC Truck. OER Parts offers 1988 GMC Truck Valve Covers, 1988 GMC Truck Exhaust Manifolds, 1988 GMC Truck Intake Manifolds, 1988 GMC Truck Timing Covers, 1988 GMC Truck Water Pumps, 1988 GMC Truck Oil Pans, 1988 GMC Truck Custom Under Hood Mirrors, 1988 GMC Truck Radiator Support Show Panel, and more...