That is just the tires, I had 36" iroks and no matter what I did I couldn't get it to go away. It gets wayyyyy worse as they get worm out... I know a few other people that had the same tires and they had the same problem.
thanks for the info... I bought em used bc i couldnt pass up the deal, plus its holding me over till i have to buy new tires.. prob gonna go with the radials this time.