Thanks, this thread helped me get my odometer working today.

I cleaned the digits with a Wet One and touched-up the needle color with an orange magic marker. Checked and cleaned all of the bulbs in the cluster and tested the odometer with an electric drill until the odometer turned over 10 miles. My drill only goes 40MPH.

If you can turn the pot metal gear and odometer digits while holding the brass gear and shaft still, you found the problem. I should have taken a picture.

I knurled the shaft, I don't see how you could reliably put locktight on it. The punch and drill bit method did it for me.