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
Had the same problem in my 2000 Silverado. I had a complete transmission overhaul with upgraded parts to renew and correct the problem. The trannie guy who did my work said the thing that bothers him the most is that it is a defect that GM has known about for years and won't remedy so it continues today.
jesseannie
jesseannie
