I keep hearing about putting 3.73 in the rear of my 04 V6 Mustang, if i do this am i still going to get the One Tire Fire effect? And what kind of differacnce would it make if i put in the 4.10 gears? I need a good place to get these put in so open for any seggestions thanx

 

You would have to put a locker of some type in the rear in order to get posi. The 3:73 gears will make the car launch faster, but take away from the top end. It will also make you run a higher rpm on the highway, which will use more fuel. The 4:10 gear will do the same, but you will have even more launch and less top end.