I am purchasing 15x8 American Racing wheels i currently have 31X10.50 tires with stock wheels, My question is with the 31X10.50's and the 15X8 Wheels will I need to do a body lift? 2 or 3 inch? can anyone help?
Just a stock 4x4, depending on what year you have, 31's will work with stock 15x7 rims with minor rubbing. So a body lift is a good idea either way. Shouldn't need more than 2" for those size tires.
Now those 15x8 inch rims are going to be wider than what you are used to (if you had stock). Just make sure that you aren't going to be rubbing on the frame or swaybar too much at full lock. Otherwise you'll have to figure out some back spacing.