instrument panel bulb sockets - 1970 Dart

You can buy them new. They are the 5/8 sockets, not the 1/2 which are more common. I bought some at Oreilly, but I don’t remember the part number.
I think some of the ones that people call junk are the wrong size. I bought the 1/2 inch ones first because I didn’t know any better. They wouldn’t make good contact and would fall out of the sockets. Finally figured it out.
The ears bust off some of the 50 year old ones, so you might not be any better there. Just my experience.
I think there are a bunch of threads on here about them if you search.