I've recently had the pleasure of getting my truck re-geared through PWG. This shop has a solid reputation and I highly recommend them for your differential needs. I personally dealt with Miguel and Carlos during my service. They were very accommodating and kept up with communication well throughout the process. With all of the additional weight that I have on my rig, I opted for 4.88 gears and front Harrop e-locker. I can say that I'm happy with my decision, my rig feels like a completely new truck. The service was completed very quickly which was impressive, about two hours. After my 500 mile break in, I returned to PWG to get my fluids changed and components inspected. As expected, everything held up well and there were very little metal shavings on the drain plug. I'll see you next time for fluid change!