Re: Final drive pivot bearing adjustment.
I had exactly the same symptoms at 28,000 miles and, like you, my friendly local BM mechanic had a look and told me that the floating stud needed adjustment.
Apparently, some owners mistake this for bearing failure, so you're right to check the floating stud first. The adjustment is really easy, you've got the correct process in your thread above. Once you've undone the lock nut, you just turn the inner bolt and you'll feel when you've taken the play out. Then lock it up and you're done...it just takes 10 minutes.
Of course, if it doesn't work....then it's your bearings!!!