It's possible that your steering stem could be twisted from a wreck. If it's not twisted, you just need to adjust your tie rods. It helps to run a tie strap from one bar end, through the rear grab bar, to the other end of the bars. This will prevent the steering from turning while you are adjusting the wheels straight. Loosen the nuts on the tie rods, and turn the tie rods to toe the wheel in and out. You want about 1/8" toe-in on each side. Tighten it back up, and you're good to go. It's really easy once you do it the first time.