Basically the higher the number the faster the take off and the lower your top speed, you always make a compromise with a duel purpose car. The numbers actually mean the ratio between the number of times the driveshaft turns in relation to the number of times the axle rotates.The higher the number the higher the rpms and the greater amount of torque at the rear wheels Pros run a 4.56 if you ran that rear you would rip your car a part if you are lucky you'll just smoke your tires until they blewup. Usually someone gets a 4.10 when they race at the track, the higher the number the bigger the investment in other things, tires,t lok, driveshft, suspention and horsepower or your just waisting your money.A 3.55 is great if you just want to go fast quickly and a 3.73 is probably what most V6 modder's have.
thit is my opinon.
Last edited by neeby1; 05-10-2012 at 12:30 AM.