http://www.wheelersoffroad.com/toywheels.htmLunar mist said:
"We carry these with a couple of different backspace settings; one that is good for stock tires and up to 11.5" wide ... called TYPE A and another that is good for stock size tires up to 12.5" wide called TYPE B. ... TYPE B has less backspacing which causes the tire to stick out from the fender a little more than TYPE A..."
You want Type A.