Quote:
Originally Posted by markslc1
I considered the same. But that 330i diff is different and has a guibo type connection. So it's not a direct fit for later cars. Same with the 3.91 from the xdrive cars. So 3.73 is the plug n play approach.
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You're a life saver, looks like it's 3.73 or bust (or $$$ on an LSD). I changed diff oil on one of my E91s and my old E82 and can't recall ever actually looking at the input side of the diff. Just looked on realoem and the 330i setup is indeed different. Now I'm itching to get under the cars after work to check things out.