Does this seem to fit your situation?
Four or all wheel drive need the same tire circumference all the way around. Put a chaulk mark at the bottme of each wheel and drive t forward for 10 rotations. IF the chaulk marks do not remain at the bottom of all four, there is a circumference problem.
The front noise may be a wheel bearing. The rear may be a parking brake shoe lining that deattached.
Get the vehicle raised in the air and raise the speed to 35 mph while someone uses a stethescope to narrow down the source...IF the noise is present in the air.
Monday, June 29th, 2009 AT 4:44 AM