What are some possibilities? on 2008 Hummer H3

Recently put new set of tires on. Now I'm hearing a roaring sound coming from the rear, sounds like I have mudgrip tires. At first I thought the tires were the problem, but had them checked and discovered the noise was coming somewhere in the rear and not the tires.

by in Collinsville, MS on June 05, 2012
2 answers
ANSWER by , June 05, 2012
A roaring noise that gets louder with speed (does not cause vibration though) is usually the wheel bearing that has failed and needs replaced. Also called hub bearings.
ANSWER by , June 05, 2012
have rear hub bearings ck'd