Well as you have probably found, I found some new but not used.
Have you thought about rebuilding the ones you have, or figuring out how to modify others to work in your app?
I have thought about rebuilding the ones we have. And it might come to it. All threaded parts are corroded beyond repair, and the metal caps on the rubber is gone as well. All new one I fond use two holes to mount to stringer, the originals use three bolts. I?m reluctant to change as the stringers are super solid, and I?m wanting to not create new holes. Perhaps a member might have some of these laying around?