Most probably a bad wheel bearing. Jack up the rear of vehicle, release the handbrake ans manuall spin the wheel. If there is a coarse noise, the bearing is bad. Compare the 2 sides, using one as the reference guide.
November, 16, 2012 AT 10:47 AM
If you put your fingers on the strut spring while the wheel is turning, you would be able to feel the difference if the wheel bearing is bad.