Does anyone know of a good transmission shop in the SF bay area? My '61 pan has a massive leak that I traced back to the clutch shaft seal. The housing for that seal, which isthe hollow drive shaft, has athat crack. So the drive shaft needs to be replaced.

get a clymer harley davidson panhead workshop manual and do it yourself, it's not that difficult. and with the help from the good people on this forum, and others, you can't go wrong. just a suggestion.