Just ordered a 2015 Wrangler Unlimited Sahara - going to lift it. The wheels/tires are either going to be 20 or 22x12 - the tires are going to be 15.5x38. Want to lift it just enough to get the tires on - not wanting a big gap between the tire and top of the wheel well. Everyone has their own opinion - I was told 4 inches of lift, then I was told the Rock Krawler 3.5 would work perfect, but they can't guarantee a true 4" lift. The next person says go 4 1/2" - does anyone have these tires on their jeep and what type of lift?