Whew! I never expected all these responses. I will take some digital photos before completing disassembly and post them.

Brian, thanks for the offer! I don't think I would like to rely on the old clips. I will want to replace all of them. I think at least one other guy here is doing the same thing. I don't like to turn down such a kind offer but I think we need to locate a suitable commercial replacement, since so many may be needed. Chevy Duty doesn't list them.

Brian, do you have a supply of them? Enough for a few trucks?

I called C-D and they referred me to another company who referred me to another ... None of them had the clips. The last link was Carter's which I will call but seem to remember that several guys had problems with them.

By the way, all pins have clips. There seem to be two sizes.