How to change out the origional ignition lock cylinder..... After I figured it out, I realized that you don't have to remove the ignition switch. But anyway, Put your key into the lock... See that little hole? Rotate the key as far as it will go, then push it in with a pick... This little pin is what you are triggering. It keeps the cylinder from rotting all the way. When the pin is pushed in, the lock will rotate a little further and pull right out. Insert the new lock cylinder in with the key, turn back to "off" and remove the key.