I have an 88 fox and I want to put 18's on it, it has 17x9 on it now with 245-45's and its tuckin a quarter inch tire in the front if I did the 18's with a 235x40 or 235x35 would it even be close to clearing?
Killian, To run 18's on a fox you need to have 94-04 front spindles for the wheels to clear the hub. As far as tires go you can run up to a 255/35/18 and clear the fender arch. There may be some contact with the fender extension in front of the tire when turning on an 88 Fox Mustang. If you are considering a 18X9 front wheel the smallest tire i would consider would be a 245/40/18 but the 255 would be a better choice. For a 9 inch wide wheel you need a minimum of 245 section width.