The universal joints are new. When they go bad they usually whine or squeak. I thought of the drive shaft balancer, could be out of balance, but it would vibrate above 45 and the vibration is not as bad from 50 to about 65 and it gets bad again at 70. No mud on the tires, the front drive unit is all new.


1985 Toyota 4x4 4Runner. 1989 Suzuki Sidekick 4x4.