My work with electronics and data immediately told me the seat swivel
is made up out of a wire crimp connector.
Those puppies are sometimes stamped out,but the better ones
look milled. I really enjoy the fact that I'm not the only one
that looks at a connector and have a " hmmmmmm ....I wonder if ? " moment. LOL
anyhoo...thanks for sharing/posting
....and for letting us walk around your brains(so to speak) on this
Chevy build of yours.