Too bad I’m not in Fresno anymore to help you. One of my bushings was completely worn through, other leaking. I remade a stock size stainless shaft. With lathe turned stainless bushings and drilled manifold for thicker bushings.
Maybe you or friend has lathe?

https://www.flickr.com/photos/mikeybs51chevy/49778209398/in/dateposted-public/


1951 Chevy 3600 rust bucket with GarWood dump bed conversion
http://www.flickr.com/photos/mikeybs51chevy