Thanks Andyrew, your info does help and raises more questions. I did add the bump kit. I loosen until I achieved the stance I wanted, but that's when I noticed the right rear a bit lower then before. Unfortunately I also had just installed new tires (on same rims) but 55 instead of the 50 I was running and now to seems a bit hard to determine the factor. I've long suspected the problems you mentioned but was hopeful my replacements would cure this. I don't want to start tearing apart the back of the car but if I can't diagnose any other way, I guess I'm in for a surprise.
I'd have to put this back together before the end of this month so I can register for the WCC and my weekend honeydo list is killing my weekends