OER Parts offers a wide selection of Brake Components for your 1988 GMC R1500 Suburban. OER Parts offers 1988 GMC R1500 Suburban Calipers, 1988 GMC R1500 Suburban OE Calipers, 1988 GMC R1500 Suburban Performance Calipers, 1988 GMC R1500 Suburban Front Calipers, 1988 GMC R1500 Suburban Rear Calipers, 1988 GMC R1500 Suburban Anodized Calipers, 1988 GMC R1500 Suburban Powder Coated Calipers, 1988 GMC R1500 Suburban Wilwood Calipers, 1988 GMC R1500 Suburban 4-Piston Calipers, 1988 GMC R1500 Suburban Aluminum Calipers, and 1988 GMC R1500 Suburban Cast Iron Calipers.