I managed to repair the threads by using a file and straight edge to regain the correct shaft size. I ran a 1/2-20 die down and back and tried the nut...BINGO! Now back to removing the steering wheel. I studied the shop manual and noticed the puller used in the illustration has a sleeve that fits over the threaded end so you actually push against the shoulder of the shaft. I have a old cracked deep well socket that will do the trick. TO BE CONTINUED.........