Anyone come across a replacement tailshaft bushing that we can use in the A series trannys?

I'm chasing down a couple of leads but have not had luck so far.

Back in the early 80's a local tranny shop replaced the tailshaft bushing in a 4 speed with a bushing he cut down from another manufacturer. Said it was from a Chrysler... I'm trying to get him to try and locate the part again. He's busy though and doesn't want to spend much time on a low bucks project.

Gary