I haven't put a trac bar on it. I'm slowly mocking everything up. I "centered" the rear end up by jacking up the frame rails and giving them a little shove
. The only thing holding the rear end to the truck is the trailing arms.
I emailed Nate and he's given me some things to measure and see if we can't find the culprit. We will see. My 6:00 appt rescheduled this evening so maybe I can get out in the garage for a bit and do some measuring.