Changed the bearings
Got the dampers back from AVO. Had the damper rods shortened by 1.5 inches.
Added 2 more bump stops to each damper. They now have 3 bump stops each - shows how wrong the damper top mounts are in respect of wheel/body position.
Put it all back together and lowered the rear of the car about an inch (was high before to avoid hitting body as I didnt have enough bump stops)
Have about 2" suspension travel in compression and about 2" in extension
Drive shafts at much better angle now.
At full droop now have 1-2 mm of shaft plunge
Car feels a lot better, and no noise.