which diff?

[dazzaboy]

I have a 316 and a 320i which i am going to make one good car out of, now somthing that i dont know much about is diff's, i believe the 316 has a 3.91 and the 320i has a 4.10 now i am going to use the 320i engine so would i be better of leaving the 4.10 in or swap it for the 316 3.91 diff

What differance is there between the pair

Pros and cons

any opinions will be great

[ballin]

Putting the 3.91 in will give you slightly better top end and slightly improved economy at the loss of some acceleration.

Personally i would keep the 4.10 in there!