LXi Chassis Parrt Number List

[patticake]

I have to agree with you on this. It sounds like the panhard rod is doing something weird. If possible, get the bus over a pit and observe the rod while raising and lowering the suspension. It may give a clue as to what is going on, plus you have to have it removed and take a really close look at the bushings and the metal to see if it is flexing. Look for paint flaking. This will be a sign of a problem with the metal(in other words, the metal flexing or bending)
I can't remember if there is something similar on the front axle, but check there also.
I know it sounds weird, but until all the suspension components are looked at, we are just guessing. Maybe David can pull up some chassis specs and check for something that I'm missing. My degree is in automotive technology not heavy equipment technology