The DSS Pro-Level Rear Axle Kit for the GTR features a direct-fit outer CV made from a high-grade proprietary material, as well as Porsche-style 108mm CV's on both ends (which have been upgraded to use DSS’ signature 30 spline bars with billet 4340 cages). The ‘anti-wheel hop’ design of these axles employs different diameter aerospace-quality torsional center bars that let the axle wrap-up and release at different rates , allowing them to absorb a great deal of the shock and minimize wheel hop considerably. The axle kit also includes precision billet adapter plates with hardware to mount to the factory differential stubs.