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
Any pics on where to look for a hole in the housing? Am I correct that when running in 2WD the only thing spinning in the transfer case is the input shaft? So for failure to occur due to lack of lube you would need to be running in 4WD?
Edumacate me here.
Edumacate me here.
