I got your PM, but I'll just answer here in case anybody else is interested. Its been a long time since I did this and I don't have the truck any more so I can't check, but here's what I remember.
After you take the plastic trim off the steering column there is a small hole in the bottom below the key lock. You can run a piece of wire coat hanger up in the hole, turn the key to run, and the lock cylinder should come out. There's a round gear in the bottom of the cylinder hole that rides on a rack type gear, that actually does the start, stop, run, etc. functions. You can take that gear out and turn it one tooth (I don't remember if its forward or back, probably forward but you'll just have to look at it and figure it out) then put it back in place. Reinstall the lock cylinder (you need to have your battery unhooked because the position of the key that will let the cylinder go back in is now START instead of RUN).
Thoroughly test!!! The switch should be able to be at a position where no accessories are powered, but the steering is still unlocked. If you turn the key back one click (what used to be accessory) you will have steering wheel lock and can remove your key for security. I think you loose the accessory position. All of the other positions should still work with the key, they're just moved forward one click. My switch was already worn where the key would come out at any position, so I don't know if a good condition switch will let you pull the key out at the steering unlocked but no power position. If not, I'm sure you can modify/file/whatever something to let the key come out.
As I said, DO THIS AT YOUR OWN RISK AND TEST THOROUGHLY!!! There is the possibilty that if it isn't quite right your steering could lock. Also, always carry a key with you anyway. My ignition fuses for my push button starter shorted one day and I had to use a key to get it home.