Plowboy, As you can see I have a set on right now the 315 size. Yes, I believe you will need a 2" front lift to make them work. I really like the tires the traction is very good in most any off road condition and not bad in the snow as long as they are fairly new. The are amazingly quite for a bold tread traction tire. The down side and this maybe fixed by now is they were HARD to balance. I went through 7 tire to get 4 that would balance. Not good. I would not hesitate to buy another set in fact I will buy a set for my jeep this summer. I think i will try the new Nitto if I can find them. Dave