Ever since i recently bought my new mustang, i think im starting to like cars more then girls. haha. ive been doing a lot of lookin around and stuff. I noticed some gears, like 4.10s or whatever, could anyone explain to me what the details listed mean and what would be the best to get, and why.
My gt is a 99 auto

 

sorry for the double posts, didnt mean to

 

I went with 3:73 because I'm in the military and move around the country alot. I think driving a couple thousand miles at high RPM's is bad. Went I get settle in at a new duty station I park my car and hardly drive anymore, then I wish I had 4:10's. So if you drive your car everyday I would go with 3:73, if not get 4:10's