I hear you, but for what I use it for, the gears I have now are fine. 4.56 would be nice but cost more for the pair. Hoping to just find a good 3.55 rear. Will seeThat's essentially a 33" tire. With your 4.0 engine and 5-speed transmission 4.56 would be a much (!) better all-around ratio that would produce ideal highway engine rpms.