I don't see where you did. Anyway, the tire size my son put on his has a tread width of 8.4" and a section width of 9.8", and a diameter of 24.7". They just miss the rear struts and are just inside the rear quarter wheel openings with the 15mm spacers - just barely.Mr Alltrac":17pqe2lh said:Sorry thought I posted that. 245/35 r18
Your 245/35R18's have a tread width of 8.8", a section width of 9.8", and a 24.8" diameter. I think your diameter will be fine - technically. That tire is pretty close on section width and diameter to my son's tires. The wheel offsets are pretty close to each other too. So a 15mm spacer for the rear wheels should work out for you, and nothing needed on the fronts, and you should just squeak by relative to strut clearance and fender wheel well lip clearance - I think (and just barely). My thoughts anyway.