My truck has been in low once in the past two years. I've got into other things and now the truck sees a lot of highway miles. It has a 4" lift and 33s with no swaybar. I bet I could find someone to trade with for stock stuff, and pick up a few bucks in the process. So... Better milage More power Better handling Cheaper (smaller) tires Easier to get in/out Any reason I shouldn't do it? I can't think of one.