Arb is 100% traction when you need it. Detroit is a great locker but Arb is there when you need it and no extra wear'n tear when you don't need it. Plus the sound when disengaged sounds awsome!!! If you do get Arb "independent4x.com" has great steel braided air lines made for Arb lockers with all the fittings you will need included. That with a "jet packs" from Powertank now your talk'n traction. <img src="/forums/images/graemlins/kewl.gif" alt="" />