Biggest wheel and tire size I can fit...
 

I just purchased a 91 Camaro RS and I want to put some new wheels and tires on it. I want to get Weld Prostars but I'm not sure what size to get and not sure about back spacing. What is the biggest rim and tire combo I can fit on my car?

I have a 91 rs with weld rims 10" wide in the rear, offset 3" outside and 7" inside. 295/50/15 fill wheel well nicely. you have to roll the wheel well up gently with a hammer an block of wood so it's not pointing in towards the tire or it WILL cut your new tires when you hit bumps. hope this helps..TAS..