Thinking of running a different rim setup for my 31s?
 

I have a set of 31x10.5x15s on some ugly 15x7 jeep wheels. They barely rub right now my concern is if I switch to some 15x8s for a wider look would they rub more? Also the offset on the new wheels is -26 or -19. Can I still get away with running these with minimal rubbing?

It all depends on where the tire is rubbing now. The 8" wheels will not make the tread wider but the side walls will stick out farther. The new wheel offset doesn't tell you anything unless you know the offset of the Jeep wheels. Then it still depends on where the tire is rubbing.