To further disassemble the tailshaft for cleaning and prep it for the rebuild, I removed the rear oil seal and mainshaft yoke bushing...I just used a punched and hammered thebushing in till it fell out...not sure if there is a "right" way to do that?
Bushing after forceful removal:

Tailshaft minus seal and bushing:

Tailshaft cleaned:

And tailshaft all pretty and painted: