Upgrading Door Locks

Ooh! I'm changing my vote. I'd use a Greenlee punch. :toothy10: I don't recall exactly but I think the '66-up locks may require a notch, not just a perfect circle, for retention of the lock cylinder in the correct rotative position. I know the '60-'65 cylinders take a keyhole-shaped hole. You may want to have a look at a '66-up car and adjust your procedure accordingly.

Remember the ignition switch and the ignition lock cylinder are separate parts. Interchange on the ignition lock cylinder is '60-'68 IIRC. The ignition lock cylinder and the '66-up door lock cylinders are easy to rekey; the '60-'65 door cylinders are harder because of their staked construction.

You can still get sets of three (ignition and two door cylinders).