Originally Posted by TopspeedLowet
If you still want to run your tires out of the wheel well after reading the above entries, then the thing you have to look for is to make sure that the front tires do not hit the rear edge of the front wheel well's. When you turn with low back space rims like you are describing, the tires rotate rearward when you turn and likely will hit a factory opening. The fix is cutting the opening larger or more practically, use the correct back space rims that fit the vehicle. You will find that you can not deviate much from the factory rim back space dimension, especially with larger diameter tires.
Good luck on your project
Bruce
What you can also do instead of cutting them is to take something like a bat and roll the inside edges against the outside of the fender. I had to do that when I put wider tires on the back of my 70 Ranchero.