OER Parts offers a wide selection of Body Panels for your Chevrolet R20 Suburban. OER Parts offers Chevrolet R20 Suburban Full Firewall, Chevrolet R20 Suburban Partial Firewall Chevrolet R20 Suburban Firewall Body Mount Patch Panels, Chevrolet R20 Suburban Firewall To Floor Braces, Chevrolet R20 Suburban Firewall Extension, and Chevrolet R20 Suburban Firewall Delete Plate.