15" Rear tire sizes for Duster

They'll fit. I had a set of 275/40/17's on my Duster with the stock 7.25" rear axle and stock spring location. If you have the stock 8 3/4, you should be good with a set of 15x8's with 4.5" backspace.

I do have the 8 3/4. The wheels are 15x8 rallye wheels with 4.5 backspace that I got from Jegs.