where can i find out what gears i have? and what are the benifit of getting better gears?

 

should be a tab on one of the differential cover bolts, if not call the dealership with your vin#. bigger gears can give you better fuel economy around town and take some of the stress off your trans and motor, especially if you have oversized tires

 

My '02 has a sticker on the inside of the glovebox that gives that information - check there as well....