How will the different lifts and tires affect my gas mileage? I only want to lift it 2" or 3". I dont really know what size tires, not too much bigger than the factory though, but i want it to look good. Also will i have to change the gears in it or anything like that, all i would be pulling is a pontoon, and a couple of 4-wheelers. Thanks for all the help! Also any suggestions on lift kit (brand) who sells them online for a resonable amount?