I got a chance to look closer today. The stub that the steering column shaft slides onto... Moves in and out by at least 1/8" as it rotates within the freeplay range. I tightened up the adjustment screw, but the slop remains. Zero leaks though. The mounting bolts are tight. No slop in any of the tie rods or center link. I have at least 6 or 7 spare power steering gearboxes here to swap in, but I am pissed that THIS "rebuilt" box cost me around $300 including shipping. (Only 2 states away) Why would it develop so much slop within only 2000 miles? I can't expect any sort of warranty since I put it in in 2003. Still, if factory units held up for 80-100 thousand miles, why should a rebuilt one from a reputable company wear out so quickly?
I think that Steve made a good point. These units may be getting nothing more than a good cleaning and new seals. What a shame.