I found a couple of people on pirate4x4 that have had great results with the bolt-on Budbuilt Trac Bar so I am working towards getting one ordered.
Some of the drivetrain vibration threads made me wonder if adding a trac bar might result in driveline vibration because the rear pinion angle would be locked in the current "rest" position and not allowed to rotate to where it's current normal driving angle. Thoughts?