I have been looking on ebay for the tire and wheel sets and I think I found one. I have a 2004 mustang but i want to make sure these will fit because the back in 315. I dont want the ride of the car to be messed up and handle bad. Also I want to make sure they wont rub of stick out the back fenders alot

 

A 315 tire on a 17" wheel will not rub, it will be ok... a 315 on an 18" wheel MAY rub if you are lowered. They do stick out of the fenders some so you get a lot of stones thrown up. It's a tradeoff though.

 

well what would be the biggest size tire i could possibly fit on there with out have it hang out the fenders? Also are there any pics with people who have a 315 tire on the back, I want to see how much it sticks out