Quote:
Originally Posted by OpenAir
I asked my CA today, who is really into this stuff, and he said no to xDrive. He did say that it will work in the 228 as it has the same ratio as the 235.
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The xDrive uses a different rear differential than the RWD, with a welded ring gear instead of bolted. You can go with an LSD from Quaife or Wavetrac. Cost to put one into an xDrive ends up being about the same as the BMW LSD in the RWD. On the flip side, a Wavetrac LSD in the RWD is about a third of the price of the BMW one.