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      07-02-2008, 02:39 PM   #1
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z4m diff swap into 3.0 car?

Other than the diff from the M, what else is needed from the swap? Do you also need the halfshafts?
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      07-02-2008, 04:16 PM   #2
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You just need the entire subframe from the M.

http://www.realoem.com/bmw/showparts...33&hg=33&fg=30

http://www.realoem.com/bmw/showparts...93&hg=33&fg=05

The diff carrier is integrated into the rear subframe. If you compare the diagram below for a none-M:

http://www.realoem.com/bmw/showparts...38&hg=33&fg=30

As you can see, the front of the diff on the M bolts onto the subframe from the side (1x) and back (2x). The non-M diff bolts onto the subframe from the side (1x) and the front (2x). I believe you can not swap the internals from the M diff to the non-M diff, since the M diff internals are much larger than the smaller non-M diff.
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      07-05-2008, 01:18 AM   #3
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thanks!
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