I have 32s on black AR767 rims, the "rockcrawler" ones. Mine are 15x8 with a 4 inch backspace. They work great on my Gen1. I know some people have 3 1/2 or 3 1/4 backspacing. With 32x11.5 tires and 4 inch backspace, my tires stick out about an inch maybe an inch and a half. That is a gen1 with no fender flares.