OER Parts offers a wide selection of Body Panels for your 1973 Chevrolet K30 Pickup. OER Parts offers 1973 Chevrolet K30 Pickup Full Firewall, 1973 Chevrolet K30 Pickup Partial Firewall 1973 Chevrolet K30 Pickup Firewall Body Mount Patch Panels, 1973 Chevrolet K30 Pickup Firewall To Floor Braces, 1973 Chevrolet K30 Pickup Firewall Extension, and 1973 Chevrolet K30 Pickup Firewall Delete Plate.