AHH! Yours is different than my '59. Yours is this;
http://www.classicparts.com/1955-72-Drive-Shaft-Support-Bearing-T2/productinfo/92-907/
And mine has this;
http://www.classicparts.com/1954-98-Drive-Shaft-Support-Bearing-T1/productinfo/92-905/
Yeah, a sealed ujoint for the middle might be a good idea, I bet it would be hard to grease.
Darren