Door locks

The driver's door lock on my '63 won't turn with the key anymore. Can they be stripped down and rebuilt? I'd rather not replace the lock as I'd like to keep the same key as for the passenger door and tailgate.

They are simple to remove, but a little difficult to disassemble without mixing all the tumblers up. Remove the linkage to it and the clip holding it in the door. Once out of the car, carefully remove the long cover over the springs and tumblers. Be very carefull as you dump out the springs and tumblers; I usually keep my thumb over the other holes and dump just one tube at a time. Once disassembled, you can clean, lubricate, and reassemble and it should work. If not, you can remove whichever tumbler is preventing it from turning and reassemble without it.