To add to what everyone else said, expect some unwanted side effects with wheel spacers, mainly the front end. That extra leverage you create from the extra width outside the ball joints puts more stress on everything in the front suspension. The shocks will be softer, your bearings, ball joints, and pivots will tend to wear quicker, you'll get more bump steer, and in my opinion it makes it way too easy to break a tie rod end if you ride in rough, rocky, rutted terrain. So you gotta weigh your costs and benefits here, but to me the advantage of a couple extra inches never seemed worth it for all the trouble it can cause.