There is a cool modification that is available on the Max Tow rear end if you upgrade. You can get 35 spline cromo shafts with an ARB in the axle! I went to 37's and re-geared and had the stuff all replaced. The carrier and rear axle are different than a rubicon in the max tow- oddly enough the shafts are the exact same length side to side (so you cannot slip in the factory rubi locker in the max tow without buying rubi axles too). I am not sure if the internal bearings are different... but the person who replaced mine said the bearings in the max tow were what you expect in a much larger truck... maybe that helped the tow rating? I have no real idea what his comments were talking about or if the rubicon carries the same bearings in the gladiators. But I learned that there are a lot of internal differences on a max tow rear axle.