275/60/15 tires on stock Duster

The car is on the ship at the moment, i pick it up next week but the rear tyres look shorter than the fronts, so i just want something to fill the rear arches out a little more, i'll be happy with 255/ 60 or even 70 profile.
Here's a couple of pics20171016_133009 (3).jpg 73 duster 2.jpg of the car, it's got a 360 in it.
Mike