Rear diff upgrade?

[thib]

Hi guys,

I own a e70 3.0D 2007 without towing package and I'm often a 1.4T boat.

I saw all the post about rear diff failure (standard version diff 33107602984) on pre LCI model.

I found a used diff of the post LCI / towing package version which is upgraded and doesn't seems to fail (33107552523). It is cheap enough I'm thinking about purchasing it and just keep it in the garage just in case the worse happen.

Here is my question:
Did one of you upgraded from 33107602984 (standard version) to 33107552523 (towing/post LCI version)?

Looking at RealOEM I might have to get the output shafts too,the code seems to be different:33208609838 for standard, 33208609839 for towing. They have both the same diameter 34mm.

Drive flange hub and collar are the same.

Is there any other parts I would have to swap?

Cheers