Thanks for the tips folks.
Beast has 105K mostly highway, and rides very nice other than the anoying noise!
Guess I am going to have a good time under the truck prodding the anti-sway bars....It sure has enough of them! Of course my procrastination has led me to have work on it in the freezing cold. I'll put the front end on jacks, and using a small jack unweight the wheel to see what is wonky. Hope to get to it soon and report back what I find.
Too bad they don't come with wear indicators...sort of turn red when needs to replace
