Any suggestions on what gears i should go with? 4.56 or 4.88? Most of the info on the truck is in the sig. Also, it is a 5spd. I want to be able to still do highway driving, Get better gas mileage than with the stock gears and have about the same amount of power as stock with figuring in, the weight of the extra gear with the bumper and sliders. I was leaning towards 4.56. Also, i may get a supercharger in the future too. Suggestions?