Originally Posted by
mysticzhp
Hey guys just wanted to say I finally got a diff for my car after I got stood up for the 3.64 from a seller. I came across and awsome deal on a 3.73 from a x3 smg. The buyer I purchased this from had it installed in his Z4. Now my question is the it seems to have a 6 bolt flange which should be the same as my car and should bolt up with my driveshaft. But I have read on google searches that if swapping a diff into a 330 you need to swap out the flange and change the driveshaft from any other e46 other then a 330. Anybody know about this swap that can help me out. Thanks guys.
first off - awesome idea, the 3.73 will be SUPER aggressive though. curious to see how you like it.
second - post some pics of the flanges so that we can see what needs to be swapped.
peter
2004 330i ZHP
2005 330iT ZHP
2010 328iT M Sport