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 have heard many stories about pump rub, but have had no issues yet.
I have one truck with 360,000 miles and one with 145,000. I thought about doing the upgrade, but I just keep an eye on it.
I have one truck with 360,000 miles and one with 145,000. I thought about doing the upgrade, but I just keep an eye on it.
