What kind of wheels (rims) are you running?? Are you sure that you arn't rubbing your lower control arms?? If the back space on the wheels are close to stock, then in a sharp turn you will rub the LCA's. I could be completely mistaken, but if there is a chance that you are rubbing them, you can check by looking at your LCA's. If your rubbing, there will be scuff marks from where the tires are hitting them. If you are rubbing them by chance, you can invest in some deep dish wheels with a bigger back space, wheel spacers (which I wouldnt reccomend), or some new skinnyer LCA's (skyjacker makes some good ones..expensive). Personally, I would invest in new wheels...Looks better.
Just a thought.....could be far from right.
Brian