I know, I know - all you folks probably have them fancy store-bought drivetrains. What I have is bolted together 3 flanges, 2 u-joints, and the splined drive flange - the same thing that somebody came up with that fancy center piece to replace. The store-bought ones are $175 but even if you buy the center H piece it's still only about $60 worth of parts + I'd hate to replace the whole shebang just for one slightly off flange. I sure wish Spicer stamped part numbers on these. Looking at this chart, the combinations seem endless.

Photo is before it got cleaned and the u-joints replaced - still serviceable but I'd like to replace one of the flanges that shows some damage eventually.

And yes I know these are Nepco parts numbers. http://www.drive-lines.com/neapco/1310.php