You want a lot!
They are a pain to find for some reason. Only saw a couple at Hershey. The fun part is finding good brackets for the ends. You will end up needed to weld up the ends a bit, but that is not very hard to do.
Try call Bert's if you do not get a response.
The rod uses the same bushings as the service brake shaft. They are purposefully made with a soft lining. They just need to be held in place and not rattle. Mine are in with good used original bushings.
