OER Parts offers a wide selection of Body Components for your 1988 GMC All Models. OER Parts offers 1988 GMC All Models Wiper Components, 1988 GMC All Models Washer Hoses & Tubes, 1988 GMC All Models Washer Jars and Caps, 1988 GMC All Models Washer Nozzles, 1988 GMC All Models Washer Pumps, 1988 GMC All Models Wiper Arms, 1988 GMC All Models Wiper Blades & Inserts, and 1988 GMC All Models Wiper Linkages.