Thank you all for your answers, much appreciated! I have thought for years that they are all interchangeable through those years. The part is for a car buddy of mine who was also told they are not. I have sent him all of the information you have sent me. So, we'll see and when he figures it out I'll let you all know. I don't own a C body, not that I wouldn't mind having one.
But, right now I'm in the middle of finishing a 68 Sport Satellite, but got slowed down with an old back injury from my military days. It's being built to race, and 30 years in the garage find. I also have a couple of 65's Satellites. One isn't here yet, just found it, B block 4 speed 65, needs complete restoration. It will be here in March. One that I have now, Small block (318), complete car 65 Satellite, it runs, but is not road worthy. It will be up for sale soon. Yes, I will post it on forbbodiesonly. Photos eventually guys and gals, right now I am looking at surgery and the cars and my running around are slowed down a bit. But I'll be back at it by late spring. Patience please.
Nevada cars don't rust much that's sure. Unfortunately this isn't Mopar country, so I find most of my parts in ID, AZ, WA, MT, and from my buddy in WI. He has a lot of Mopar stuff, and does excellent restoration on everything from switches to consoles. He built me a beautiful console for my 68 Sport Satellite. You can find him on eBay under seller name "sniff-out-parts". In my opinion he's very fair priced and he's a good guy.
So, thanks again, and we'll talk later, Lar