[supersnake6]

I own a 2007 v6, pony package.It has 235-55-r17 tires on factory 17" wheels.Im not sure of the width of the rim.If any one knows the factory width,I would like to put the widest tire on all four wheels without any modifications or turning problems(rubbing/scrubbing)..This is the first car im building the way i want it,but its always a learning process.Thanks for any input.

[amustangrocks]

you can go 255 on the factory rims, no problems. heres a program. put in your tire sizes and you can compare dimensions. i think your rims are 8".
Tire Dimensions Made Simple - Discount Tire

[johnnshepherd]

255/50-17 is a perfect fit on the factory 17" wheel.

[supersnake6]

Thanks for the input.Trial and error can become costly sometimes.