I just came across this thread yesterday and it got me thinking. I have a 37 performance package and that sound from the right front suspension area was driving me nuts. A lot of you in here have already described it perfectly so I won't go into it. I jumped on the bandwagon and posted that yes, my truck experiences the same problem. But then I got to thinking that I haven't noticed it for a while. Did it go away? Was I just not noticing it anymore because I was getting used to the sounds? Today I took my usual Saturday Morning 6:30 a.m. Drive to breakfast. To get to the restaurant I cross a big, empty parking lot that is contoured very much like the face of the Moon. If the sound were still there, I would definitely hear it going across that parking lot.
The sound is gone. I have a little over 5,000 miles on the truck already, and the only thing I can think of is that whatever was causing the sound needed a little bit of a break in. I regularly play with the shock controls, switching from normal to sport to Baja. Perhaps that had something to do with it. Anyway, I wouldn't Panic just yet. Time and miles may very well take care of this issue for a lot of us.