Quote:
Originally Posted by BimBimM2
That's not too far off from the official BMW LSD for xDrive M235/M240i
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Except that there isn't evidence that the official BMW LSD for the xdrive M240/340 actually exists. If you look at the PN BMW provides, it's the same PN as the RWD M240/340i.
The M240/340i RWD use a 215mm ring gear diff, the xDrive M240/340i use a 188mm ring gear diff, same as my 328d. The axle shaft seals are different sizes. I couldn't find one example of the M-Perf LSD actually being installed on an M240/340i xDrive vehicle, but there is a post on these forums of an xDrive 340i owner who tried to have the M-Perf LSD installed and the dealership found out it wasn't compatible. So it was an easy choice to go with Diffsonline and a Wavetrac, which I KNEW would work, versus buying the M-Perf LSD from a dealer, and finding out in the middle of the install that it won't work...