You guys are missing something I think. The wheel size isnt going tobe a major factor. A 14, 16, 17, 18 in rim is there, yeah. But the tire is what causes clearence issues. It is what makes the outter diameter of the set. Of course if you run a huge tire on a rim its gonna hit no matter the rim diameter. I have a 85gt lowered an inch. I run 17x8 front and 17x9 rear with a 255-40 tire and have no rubbing or problems. So If I went with an 18 in rim, and a shorter sidewall tire, I would till have no issues.
Its comes down to this: tire size, rim width, and wheel offset/backspacing. The fact that its a 17 ot 18 in wheel wont matter.
And like I said before, I have seen in a recent mag a pict of a fox with mach I wheels. So they will fit.
Or am I totally off base here? Later guys.
Joe E.