gears ?
Also what size is my rear end?
I was thinking of getting those. Would I need anything else besides the install kit?
a. highway at 60 you'll be sitting around 2200-2300
b at 70 you'll be at 2600-2700
c. you may see a slight increase in mpg in city driving
if your paying someone to install these, you might as well just get a built rear with those gears cause the stock one will fail sooner or later...then this will be money down the drain.

