Have the 1st run Climax, with the old style drive shafts that plugs into the trucks and are pinned to the gear box. The collar on the gearbox end has split in half. Can't find the other half to try and glue it back together. Still have the pin intact. Anybody?
I am sorry I can't help you since I don't have one. Have you tried calling the service department at 800-356-3910. They may be able to help.
http://www.bachmanntrains.com/home-usa/service.php