Dynacorn One-Piece Rear Trunk Brace In Weld-Thru Primer for all 1965-1970 Convertible Mustangs. This is a one-piece solution to repairing the rear edge of the trunk where the fuel tank mounts on 1965-1970 convertible Mustangs. Dynacorn's premium rear trunk brace and reinforcement are constructed from high-quality stamped steel with a weld-thru primer finish for rust protection. The rear trunk brace and trunk brace reinforcement come welded together. Includes driver and passenger side trunk brace reinforcement caps. Advantages of Weld-Thru Primer: - Reduces prep time when welding new parts to new parts that are both covered in the weld thru primer - Reduced spatter - Lower distortion of the panels - Superior conductive properties that help minimize high heat zone problems - Eliminates corrosion that would form between overlapped panels or multi-layered spot welds - Helps when welding a new panel to old metal - Lower resistance at the weld surface allows better penetration into the denser, new steel that helps forgive an old alloyÕs problems with porosity and impurities - Helps prevent resin build up between welds that can trap moisture in the old porous steel that leads to failure at the weld borders *Trunk brace reinforcement caps do NOT come welded on to the rear trunk brace.