Originally Posted by mkford
For others with the same issue:
I first jacked the truck up and set it on jack stands at a height just high enough to have both front wheels off of the ground.
The screw discussed above in is located on the side of the steering gear box directly opposite the Pitman arm coupling.
I loosened the nut around the screw using a 9/16 socket. The nut sets fixes the screw so that the screw cannot rotate. The nut was pretty rusty and I may end up replacing the entire steering gear box because of the rust. A new Napa steering gear box for an F150 is $139 in MD.
Once the nut was loose I tightened the screw in small increments (about 1/4 turn of the screw) and had someone in the cabin check the steering play after each turn of the screw. The play decreased noticeably as I tightened the screw. I found overtightened made turning the wheels to the right slightly harder than turning left.
I adjusted the screw until the play was reduced to an inch or so and the wheels could be turned relatively easily.
I then tightened the nut surrounding the screw to prevent the screw from turning on its own and let the truck off the jack stands.
This procedure will work for a lot of the power steering boxes out there no matter what kind of car or truck it is.
Hope that helps anyone in need.
Bumping an old thread.
This procedure worked for me, No play in the column, or any control arms, tie rods or bearings. Just play inside the box. Took a while to check all of the components but this worked.
I loosened the nut around the screw using a 9/16 socket.
The only difference on my 1993 is the lock nut is a 5/8".