Not an A body but still a Mopar

You can probably get one from Big M auto salvage. He's located somewhere in northern CA, but I'm not sure of the city. John is a regular poster on www.forwardlook.net, and has a stellar reputation as an affordable parts source for old finned Mopars.

I have a cable, but it looks really bad and I don't think it's worth trying to salvage. I'm converting my '56 Belvedere to a modern speedometer with an electric drive.