How do you replace lock tumbler 1997ford 350?

To replace the lock tumbler on a 1997 Ford F-350, start by removing the door panel to access the lock assembly. Disconnect the wiring harness and unscrew the lock mechanism. Use a small tool to depress the retaining pin on the tumbler, allowing you to pull it out. Insert the new tumbler, reassemble the lock, and reattach the door panel.