gearing..
 

anyone put differnt gearing in yet 4;10 is what im thinking i think its gonna make my fuel mileage worst but by how much...?

All depends on how you drive, what your stock gears were, and if you have aftermarket wheels/tires then how big and how much extra weight did it add?

i have 3 55 and 33'' by 12.5 tires what gearing would u go with? and where u get the front gearing

I ordered by FX4 with 4:10's and am having 35" tires installed. So it should be equivalent to around 3:73's +/-

Actually closer to 3.55, that why 4.10 is the minimum recommended for 35's otherwise your gas mileage will suffer. 4.56 with 37's will get you around 3.55 also