hello i have a 1977 k10 and i had a griding noise and feel when i hard accelerate in 4wd and a squeal when turning in 4wd.
Changed the u joints and the squeal is gone but now it grinds in 4wd and 2wd.
What could it be wheel bearings to tight or loose?
Dana 44 NP203 transfer with a part time kit.