compatability 4runner / jeep wrangler rims

I have a 95 4runner and am in need of tires. I found a set of 4 stock tire and wheels off of a '04 jeep wrangler at a great price. I think they should fit, but wondered if anyone has tried. It looks like both are 15x7s w/6 bolt pattern and 31 x 10.5 x 15s, but I dont have a clue about the backspacing.