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Old 03-20-2013, 09:04 PM
LaCrosse540i6's Avatar
LaCrosse540i6 LaCrosse540i6 is offline
Smiling from gear to gear
Location: WI
Join Date: Apr 2009
Posts: 1,182
Mein Auto: '03 540i M-sport
There is another member on this forum who just upgraded his M5 diff with 3.46 gears from and e46 M3.

It's documented in his lq9 swap thread, check it out.
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