Decided to "figure out" how to disassemble and reassemble the seat frames so I can get them powdercoated and the spring and arm plated.
Once this little roll pin comes out, it's all easy.
Getting it back in with the spring compressed is a bitch!
But I was able to figure out how to easily do it without damaging the rest of the frame.
Reassemble the parts with the spring clipped into the hole in the back of the crossmember.
The trick is to use a punch and get the pin in further than normal with about 3/16 exposed. Now take some electrical wire (about 20 inches), 18 gauge works, loop it around the bend of the spring. Tie it together and make a big loop you can pull. Place the frame on a secure surface (or on the floor with a rubber mat underneath) and pull the spring over the pin. Now take the punch and pop it out from the backside so the spring has more pin to grab.
Note: If you send of the seat frame to get painted or powdercoated, there is a plastic bushing that easily taps out with a socket.
There is also a black hard plastic bushing where the adjuster arm goes initially through the frame.
Pop those out, media blast everything, powdercoat, and you can have a new seat frame.