differential advice needed

[liam012]

Hi
currently i have a a standard diff on my car - i think at stock the final drive of my car is 3.45

can anyone tell me the difference between fitting a 3.73 and a 3.91 lsd to my car which would be better/worse and whyy?
i imagine the closest to stock final drive would be better so i should try a 3.73?

very much appreciated
liam

[OllieB]

You don't say what car you have mate, but the benefits of an LSD are obvious, no spinning away power on the inside wheel, better cornering and better drift control. To put it simply, the higher the diff is geared the better your acceleration will be to the detriment of top speed and vice versa. Hope this helps....