Check out this website. They have a description of how to remove the lock cylinder from a Ford steering column. They are broken down into step by step detailed instructions on their website (for a small fee). Although the example is for a different vehicle than yours, the column is identical to yours (tilt and non tilt use the same housing)
http://www.steeringcolumnservices.com/steering-column-repair-how-to-instructions/ford/lcfi-lock-cylinder-removal.php
I hope these instructions help you.
http://www.steeringcolumnservices.com/steering-column-repair-how-to-instructions/ford/lcfi-lock-cylinder-removal.php
I hope these instructions help you.