UPR Fully Adjustable 2024 Aircraft Billet Aluminum Axle Braces for your 1979-2004 Ford Mustang with 8.8" rear end. Designed to tie the axle tubes and center section together to strengthen and stabilize your stock 8.8" rear axle housing. Designed to bolt on to the center section and includes tabs to be welded onto the axle tube. Adjustable bars are made from Hex Billet 2024 Aluminum, our high quality heim joints and heavy duty hardware. By using 2024 Aluminum, the UPR braces have a higher yield strength, and better elasticity than 6061, while demonstrating similar shear and tensile strength to steel.