The
hardcore details @
http://personal.utulsa.edu/~nathan-b.../3propelle.pdf
If needed, all of the U-joints, including the Double Carden, are available at the
usual outlets (PartsAmerika, 'Zone, NAPPY...). A big
vice will help. A
press more so.
Once it's out, do it at your leisure. The
money you
save by doing it yourself can be spent on
tools!