U-Joint Update.
As expected, unfortunately Lionel will not authorize repair at my cost. Referred to service station. In more carefully reviewing, and at the suggestion of a member, I removed the 8 screws holding the body to the frame, and now notice the U-Joint appears not connected. Do not know steps to reconnnect, or if broken. Cannot easily see how to reconnect. The body has many connections to the shell for lights, etc. and concerend to go too much further as to cause more damage. I have some tools and skills, but it all looks very complicated and fragile, but also amazing engineering in some ways.
Welcome suggestions, likely taking to an authorized reapir station. 
Thanks. Mike
