Hey fellas...So I'm working on putting a lift together for my Spartan tuned 6.4. I have the wheels already which are Fuel Throttle 20X10's. I've decided to go with an 8" suspension lift and would like to run 38's. Will this be too big for an 8" lift or would 37's fit better? Or would a 10" lift be more accomodating for 38's? Also, are those of you running similar setups re-gearing your differentials? Open to any and all recommendations...Please post some pics if you guys have some of similar lift and tire combos. Thanks!