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Old 03-20-2013, 08:51 PM
granlund granlund is offline
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Location: USA
Join Date: Jan 2011
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Mein Auto: -02 530 & -92 325is
Even though the gasket is the same on many 220mm diffs, the cover and the diff housing itself clearly is not. The only reasonable option as I see it is a 3.15.

I do not know if you can gut the interior of an E53/E60/E63/E64/E65/E66 higher ratio diff and use it in an E38/E39 housing, which would be a more involved upgrade.
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