okay so things are getting weird. Here is the story.

The load leveling on my 95 E320 wagon with 120K used to work fine. then the pods went out. I put in new pods. during that install I stripped the threads on the valve body. I got a used valve body. everything is put back together. no load leveling function. there are no leaks as far as I can see, and oil level hasn't gone down a millimeter. the wagon remained at normal height though. when I would load it up with 300-400lbs, it of course would sag down and not lift. when I unloaded everything, it would return to normal height. Over time (weeks) car now sags all the time. not totally bottomed out, but significantly drooped. Also, I attempted to test the valve body. car was running and back of car was on ramps. I disconnected little arm and moved the valve body lever manually. no motion in any direction.

so thats where I'm at. Not sure where to go now. I was planning on taking it into a good shop here and want to ask them to look at it. knowing the above information, what do you think I should ask them to look for? off the top of my head, I would want to know:
1) pressure of line coming into valve body (to see if pump is providing enough pressure)
2) pressure of valve body output line (to see if its the valve body)

I would assume everything needs to be tested under load (weight)

I'm just kinda lost at this point.