OER Parts offers a wide selection of Body Panels for your 1981 GMC C1500 Suburban. OER Parts offers 1981 GMC C1500 Suburban Cowl Panels, 1981 GMC C1500 Suburban Cowl Drain Flap, 1981 GMC C1500 Suburban Side Cowl Panel, 1981 GMC C1500 Suburban Cowl Panel Plugs , 1981 GMC C1500 Suburban Cowl Drain Hose, and 1981 GMC C1500 Suburban Cowl Gasket.