E36 diff

[29 ITS NER]

Looking to change the diff in my 94 325is.
3.73? 3.91? % lockup? Running 16" wheels. Mostly racing at NHIS, LRP maybe WGI and Mt.Tremblant. Any advice out there?

thanks,

Dom

 

[mlytle]

3.91 works well with 16in wheels at summit and vir. think i was on rev limiter at the glen last year.

 

[29 ITS NER]

thanks. Stock 3.91 it is.