Here are some pics of the new MT S/R Radial 28 X 12.0-15 and 26 X 8.0-15 tires. The rear rim is 10"X15 with a 3.5" backspace, but since my rear en... Show mored is narrowed by 1" on each side, you would need a 4.5" backspace on a stock rear end to replicate. There is a good 1/2" room to pull in the wheels futher with no hammering of the wheel wells, so a 5" back space is best with most stock rear ends and unmodified wheel wells.
Here is the new MT SR tire with flame tread pattern mounted;
Here are various angles; Show Less