HELP: Wheels Grinding, WHY!!!

Whats up guys? I have a question about something. Well the deal is my front wheels grind on my control arms when i take sharp u-turns fully locked up, and i am wanting to know how to fix this. Im tucking 18x8.5 wheels with a 15mm offset, and i get full lift with re-7s up front. Im also layed on stock spindles. Im just wondering if its my wheels, because i dont have the dough to just go get new ones. Please, please help me with this guys. Thanks for any help ya'll can give me

have u tried wheel spacers? this will bring ur wheels further away from the control arms.

what kind of vehicle?

On my S-10. I was thinkin of some spacers, but would there be anything else causing this problem?