how to upgrade ix dif.

[MN325ix]

so i read some articles about putting the m3 e30 dif in the 325i but will you need 2 difs to do this with the ix?

[nando]

hmmm?

the M3 diff is the same as a 325i diff, it's just a 4.10 ratio

if you want a 4.10 ratio, get a set out of an automatic ix.

and yes, you do need two diffs for the ix and they both have to be the same ratios

[Alkasquawlik]

What are the stock gear ratios for iX's? aren't they like 3.76 or something?

[supernaughtIX]

Autos are 4.10 and 5spds are 3.91 for 88-91, i think pre 88s might be different, as well as tourings.

[supernaughtIX]

so i read some articles about putting the m3 e30 dif in the 325i but will you need 2 difs to do this with the ix?

and for the record, the front diff is not the same as the rear in case there was some confusion, it is a front only diff that bolts to the oilpan

[nando]

I think tourings have the same gear ratios as late ix's (3.91/4.10)

early euro ix's got 3.64s for manuals and 3.73s for automatics

[supernaughtIX]

right, i thought so, I looked at a euro 87 once and it had 3.64s i think.

[MN325ix]

so i need the a front and rear dif out of a ix automatic. to put in my ix manual to have same ratio as m3.

[MDryVur]

somewhat ... yes and no... remember your an all wheel drive.. not a rear wheel drive.

[nando]

somewhat ... yes and no... remember your an all wheel drive.. not a rear wheel drive.

huh? he'll have a 4.10 final ratio. what does AWD have to do with that? :p

[MN325ix]

i know its awd....