[HawgRyder]

Second the idea of tires.
I had a belt shift on me once...and it was difficult to see.
It used to happen if you exchanged tires from one side to the other when rotating....with radials.
If you spin the tire slowly and watch the tread pattern...a shift appears as a sort of twich in the tread line...like a wiggle in the carcass.
If so...new tires.
Bob