'87 w126, 280k, after new drag link, new steering damper, idler arm kit, tie rods, track rod mounts, ball joints, replaced steering box (w/used one, tighter than original, but still 2-3 in. total play).... still wobbles. Haven't tried adjusting screw on steering box. Bout 55 mph, usually when hitting pot hole, feels like entire front end shakes, and I don't mean a little shimmy, it's like it's going to fall from under the car. Doesn't do it every time. Seems most likely first thing in the morning, or first few miles of a trip, rarely after that. Jerking the wheel and/or jamming the brakes will stop the wobble. After replacing steering box, wobble went away, thought it was fixed, but back as bad or worse than before. Anyone got any ideas? thanx for your opinions