Look for loose things in the area of the wheel/tire that might be rubbing. I've bent the backing plate for my rotors accidentally and it was rubbing.

try getting the nose of the car in the air and run the engine with the trans in first and let the wheels spin freely under engine power. play with the steering and see if that makes a difference, get up in the area of the noise and listen for the sound. A mechanics stethescope might help depending on how loud your engine is

Erik P.
Official 2GNT thread Hijacker
Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be...
All we know is, He's not The Stig... But he is The Stig's Spartan cousin!