Tailshaft bushing removal/install

Man I have got some things to learn....
Accumulator piston?..., first time hearing that term/name/part.
-Thanks for the info./ advice.- will do some independent studying
A good manual is hard to beat and Tom Hand wrote a nice one a year or so back. You can get it here on Amazon

https://www.amazon.com/dp/1613253354/?tag=joeychgo-20

BTW: I don't see a lot of worn yokes unless they have a ton of miles on them. The bushing is soft so it wears out first and is much cheaper to replace