The new for 1963 tilt (adjustable) steering column was not included in the 1963 Cadillac Shop Manual. It instead came out as an 11 page Addendum which I have scanned and uploaded and can be accessed by clicking on
1963 Cadillac Shop Manual Tilt Steering Addendum.
The 1964 shop manual did include a section on the tilt column.
I will add this to our Literature drop down menu in the website header for easy access.