How do you change an ignition lock on a 1998 Lincoln Navigator?

To change the ignition lock on a 1998 Lincoln Navigator, first disconnect the battery to ensure safety. Remove the steering column covers by unscrewing the screws and gently prying them apart. Then, insert the key into the ignition and turn it to the "On" position to release the lock cylinder; press the release tab and pull the cylinder out. Install the new lock cylinder by reversing the process, ensuring it locks into place before reassembling the column covers.