I finally had the 3n72(?) die on me. I'm not sure if I can resurrect it. I suppose I should have overhauled the bearings back in 2011 when this thread was current. It was used when I bought it and I used it for most of 8 years, so I guess it doesn't owe me anything. I'm not sure what's going on with my 3n80 hub. I thought it was making noise when I took it to France, but I'm pretty sure it has stopped. I finally have one of the SON hubs with the contacts built into the axle, waiting for the frame to be painted to install the wiring