I traced down some movement in the suspension to a worn heim joint in the track bar. I couldn't get the joint out of the track bar no matter what I tried.
And the track bar itself contacts the upper control arm on the differential, so I ordered parts to make a new one. However, this is what showed up in the box:
$140 worth of wine.
That's great and all, but I didn't have my truck parts. I should have them on Tuesday.
I also pulled the headliner so I could install those rails from my Expedition. I used fender washers and RTV to seal the holes I drilled in the roof:
The headliner came out much easier than I thought. I picked up 3 more cross rails at the junkyard- so now there's a total of 5. Everything is installed, but with no track bar installed, I don't want to drive it out of the garage to get a good picture.