A356.0-T6 aluminum constructionB&M logo engravedLoad bolts provide additional support to bearing caps0.5 quarts extra fluid capacity and cooling or strengthen ribs keeps temperature coolerFill plug and magnetic drain plug make it easier for servicingThe B&M Cast Aluminum Rear End Cover was designed to strengthen the rear end by preventing case distortion, ring gear and cap bearing deflection. Constructed of A356.0-T6 aluminum, this rugged unit also dissipates heat much faster than the stock factory unit to prolong the life of your ring and pinion gears. Additional features include an engraved B&M logo, added fluid capacity for better cooling, magnetic drain plug for catching ferrous metal particles, complete hardware, installation instructions and a one year warranty.