Here are the instructions for replacing the keys...
OK, the tools you will need are a wrench and socket of course for the T-bar bolts, a jack and two jack stands, and a GM Torsion bar unloading tool or a 2-jaw gear puller. Some have said you can use some sort of C-clamp also, I used the 2-jaw gear puller on my truck.
First- Set the parking brake and jack the front end up off of the ground. Not much, just enough to get the tires off the ground.
Second- Turn the torsion bar adjustment bolts down all the way till the keys are resting on the block that the bolts go through. You can go ahead and remove the bolts.
Third- You will see a dimple in the key where you can position the gear puller so you can push the key off of the block. Make sure you have the gear puller clamped to the crossmember very well!!! If you do not and it slings off you could get hurt very bad. If you have any doubt about it not staying on good when you have the pressure on it, try tying a string or a small bungee to the gear puller in case it does sling off. This will break the momentum if it does sling off.
Fourth- Turn the gear puller so that it pushes the key up off of the block that the bolt went through. Once it is far enough up remove the block by pushing it out of the hole. Now you can turn the gear puller so that it will let the keys back down. After you let them down enough there will be no more pressure on the t-bars. You can now slide the t-bars toward the front of the truck and the keys should fall out.
Fifth- All you have to do now is replace the old keys with the new Ford or "Hill" keys. Putting them back on should be simple after taking them off.
ANybody think they could make sense of that and would be willing to help me and my friend out?