[cobraduke]

I'm pretty sure it is a GM part, used on a number of cheaper models in the 80's. I don't have a specific part number or source. You might check with Alice Preston at Camalot Motors. Google Excalibur Motors and it will come up if you need the site. Let me know what you find out and I'll add it to the parts/info document. Seems like someone in this thread had the same or similar problem, but I never knew how it turned out.

Mike