[KONG]

I put a fabtech 6" on mine and currently, im running stock rims and tires (I know, it looks goofy but Im getting bigger tires soon). I did notice that the H2 was working a little harder on hills and I lost 2 miles per gallon with just the lift. I just bought a hypertech to see if that corrects the problem. we'll see. But Gears would have to be in order if you want to do lift, 40" tires and tow.. And a sc would just sweeten the deal.