I had the exact same symptom and replaced the CV joints, transmission (for
other reasons) and rear wheel bearings and nothing has changed. I have been
living with the noise for 50k or more and think that I will look at the trailing
 arm bushings since my problem is worse at slow speeds going over bumps. I
have  also replaced all of the shocks/struts as well. The noise does sound like
a CV  joint noise but I even swapped out both sides after replacing with new
joints  just to absolutely rule out getting a bad joint in the same place.

David Clarkson
90 Westy (245k)

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