Upgrade your Mustang's rear end with the Mustang 8.8 Differential Cover Rear End Girdle System . Constructed from high quality cast aluminum, this differential cover rear end is both lightweight and strong with excellent corrosion resistance. Forged to ensure a perfect fit in the rear axle, fits 1979-2004 Mustangs with the stock 8.8 rear end, and will also fit 2005-present Mustangs if you use a panhard relocation bracket (not included) . This girdle system installs easily with basic hand tools and includes all necessary hardware such as washers and bolts. Improve the performance and durability of your Mustang with this well-designed differential cover rear end girdle system.