50,000km now after I changed the bearing to an Angular Contact and no problems at all. Below picture might explain it a bit better.
See the difference in the two bearings, above is the deep groove bearing that BMW installed and below is the Angular contact bearing I inserted.
If you do insert an Angular contact bearing, make sure you drill three little (3.2mm) holes like below in order to be able to use a 3mm pin punch to knock the outer ring of the Angular bearing out of the casing, as the bearing can easily come apart like a taper roller bearing and then you cant get the ring out. I used sylicone sealer to plug the little holes and has lasted the 50,000kms with no oil leaks.
Below is the package the Angular bearing came in with with all the relevant numbers you might need to order one.
So it worked for my GS, She has now done close to 180,000kms in total and I hope never to see my sump plug look like below again when I drain the oil of the dif. . . . . . I'm ready for the next 180,000kms!
Hope this helped a bit.
Johan
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