GM Pump Rub in Transfer Case
GM transfer cases 261 and 263 are prone to a condition known as Pump Rub. It is where the pump used to circulate the fluid in the transfer case wiggles back and forth wearing a hole in the transfer c...
Forum Discussion
I had pump rub on my Yukon XL. Had less than 70k miles. I knew something was happening because I had a oily substance on the back of the vehicle after driving.
