Basic door lock keying 101

Iv'e noticed on the early a bodies that the door cylinders cover appears to be staked into place. I'm guessing that I'd have to cut or chisel back to get the cover off and try to restake the cover. I have about a dozen door cylinders and some without keys I might just give it a try now. I have a few set of door locks from A100's and they look like a-body ones.

They are probably the same across the board for those year models as they are in the newer style years. I would certianly try them anyway.