Wheel & Tire Fitment Question

That offset is a bit low for the rear wheels, so they may stick out some. Most 9.5" rims are using an offset of 40mm or more, so that's a little under a half inch difference. 5x4.5 and 5x114.3 is the same bolt patern.
Dan

That is a great question I have been looking for how wide of a rim I can go with without having it stick out past the fender does anyone know? Along the same line I was also wondering about rotor size vs. rim diameter. I want to get a larger rotor and was wondering how big can you go with an 18" diameter rim?

The 14" brembo kit from ford fits under an 18" rim, as does the stoptech 14" kit and probably most 14" rotor kits. 15" rotor will likely need a bigger wheel (19"+). Of course no two wheels are created equally, so make sure to check brake fitment prior to purchasing. Personally, if it's mostly for looks (you don't do more than open track events) then I'd go with the ford kit, more than enough brake for anything short of a true race car.

I'm not 100% sure on how wide you can go with what offsets, but I know 9.5" with a 40-45mm offset fits on all fours, there's a whole thread on wheel fitment.
Dan