15x10 on Duster

I have a 15x8 and that with with a 8 1/4 and a 28 in tire 275/60/15 I also have SS springs so I dont believe it will hit My 28 in tire wasnt close to hitting the lip either. I dont understand how 2 more inches would be such a problem when im going to use the same size tire just 2 in wider, even if I need to roll the fenders I will do so. And Most Likely this would be only for Racing rims unless i can find 2 more wheels like mine in 15x10

The plumb bob works well. I thought the tires I was using as a reference would hit the fender lip and it wasn't even close. It was an illusion!

It will be easy to tell how much extra room you will have since you already have a fairly large tire to use as a reference.

Let us know how it works out.