Ian, very interesting
Would it be possible and a good idea to use lithium grease even with opened ball bearings?
I changed my bearings last year, but will haul out soon, so to opens the gear boat and put in lithium grease would be a small and quick job
I have some play between the propeller hub and the shaft so a steel bushing would solve that
Paul on SY Kerpa SM259 currently cruising Rhode Island