We just got finished doing that in our 71. It really isnt that hard. A few suffestions are:
1) Disconnect intermediate shaft from column and and from steering box. If you want, pull that out, clean it up, and make it look all pretty. Get a new rag joint (or use the old one, doesnt matter)When replacing the column, if you connect the intermediate shaft to the column, and then install it through the firewall, it makes life easier so you do not have to get at the bolt under the brake booster. After the shaft is in, then replace the rag joint and lightly bolt it up.
Thats the tip.
To do this (or this is how it was in a '71)
1)take off the plate that connects to the dash to acess the bolts on the column.
2) 4 bolts in the middle and 2 nuts up along side the column itself.
3)disconnect wiring harnesses
4)Take screws on plate on firewall off, so you can get to the hole.
I do not know if/when you have to take your linkage out, because I had a 4 on the floor. Maybe someone can help out on this fact.
More or less, this job just needs a little common sense to complete.
For a more complete "How to" that I got from someone here, on the paper i printed it has an email adress that if you want, I will send it to you, and you can ask him for "TiltColumnD&R#202OC02.doc", if someone here does not post it first.
Chris
EDIT: With a little further searching, I found the website:
Tilt Column Help
It should ask you to save or open. If you want, open it and print it out so you have the directions with you while working.
Hope whoever gave me the link in the first palce doesn't mind me posting it agian.
Chris