clintster77

I was looking at some nice wheels that are advertised for a 04 mustang and was wondering if they would just not be the best fit or would handle bad or what? on an 05 mustang . I have seen 05 mustang wheels with different offset from 45-38mm but what about a set of

17x9
Offset: 25mm
Backspacing: 6.06"
Bolt Pattern: 5-114

I assume this would not be a problem on the rear but what about the front ?

sorry for any redundancy to the subject .
I may get them and use them on the rear only . but I would have a set of four and was wondering what the worst scenario would be?(up front)

Norm Peterson

I know for a fact that others have installed wheels with offsets in the low to mid 20mm range all the way around. I don't remember any particular names so you might want to poke around a bit. Maybe a search on the term 'offset' will turn up something.

You might want a slightly different toe setting. Tire drag force (which remains essentially constant here) is located further away from the control arm chassis-side pivots. This means that the control arm bushings are a little more heavily loaded and will therefore deform slightly more. This compliance effect shows up as a change in the compliance steering that your non-zero toe setting is intended to compensate for. Whether you want more or less toe depends on the rest of the front suspension geometry. You might feel a difference in straight line stability over uneven pavement (think truck ruts) whether you correct the toe or not.

The ride will get a tiny bit softer, you'll probably get a tiny bit more roll, and your camber setting will go slightly more negative. All small effects that you may or may not notice even if you know they are happening.

I'll let you work out the potential for clearance issues caused by the revised locations of the outer bead seats and reduced offset relative to what you currently have.


Norm

Philostang

Since Norm gave us the good answer to your question (thanks Norm!) and suggested working out the clearance on your own, I'll suggest some help with the practical math.

Check out the Wheel/Tire Size Comparer at http://www.wheelsmaster.com/rt_specs.jsp

Hope that helps.
Best,
-j

RodeoFlyer

I have 3 sets of R58 Cobra R wheels that I use back and forth between my Cobra and my S197. With 275's I have more clearance issues on the fox lol.

24mm will work just fine.

clintster77

cool ..thanks to all for the feedback .

I guess that the small amount of deflection added to the bushings is minimal
stock is 16x7 45mm offset
17x9 with 25mm offset would put aproxx 1.79 inches extra on the outside

so 1/4 inch more on the inside and 1'' 3/4 inch more on the outside