Dick: Thanks for the update. The front u-joint looks like a nornal run-of-the-mill joint, not the odd duck you describe. Lowell Howe is sending me a center support and bearing, and my drive shaft guy will make it work. If need be, he'll do mods. I sure hope this solves the vibration. I can't drive my baby like that. John Santa Fe '56 S'hampton (needs backup lens on the right side)