You're not getting much help on this. Really surprizing(have no idea how to spell that word!) for the amount of activity on this board. I looked through my service, and overhaul books, and the only column it covers is the non-tilt procedure. I can only guess that it was originally covered in a supplement. I recommend contacting Bishko Books in Ohio. When I couldn't find an overhaul manual, I found them on the web. They buy, and sell original manuals, and had the one I got in stock. Original 68 printed book, in perfect condition for $44.00 to my door!! They may know if there is a supplement available for the tilt columns.
www.autobooksbishko.com Good Luck