OER Parts offers a wide selection of Exterior Styling for your 1988 GMC R2500 Suburban. OER Parts offers 1988 GMC R2500 Suburban Front Spoilers & Air Deflectors, 1988 GMC R2500 Suburban Grill Inserts, 1988 GMC R2500 Suburban Ground Effects - Aftermarket, 1988 GMC R2500 Suburban Ground Effects - OE, 1988 GMC R2500 Suburban Light Covers, 1988 GMC R2500 Suburban Rear Spoilers - Aftermarket, 1988 GMC R2500 Suburban Spoilers - OE, Rear 1988 GMC R2500 Suburban Louvers.