Well now I can just go piss up a rope. I was going to tackle the ball joint / tie rod installation on the 79 SD. But the head wound reference has me rethinking the DIY approach on this one. I have never done any work on any steering parts, and I believe that you gentleman have just educated me as to level of my incompetence in this arena. I think I'll stick to adjusting valves and rebuilding monvalves and the like. I'll be heading to the local professional for the ball joint installation. The contents of my cranium, while not a perfect example of fully functioning gray matter, undoubtedly is of more use where it is than it would be decorating my shirt.