Ok, I just got finished with the install, and I drove it around an empty parking lot hard, hard turns, launch, and some hard breaking. The first time I hit the breaks really hard, I got a grinding, metal to metal sound, I did it again and the noise lessened. I repeated this until I got no noise. They are absolutely quite now.
I have had 4x4's all my live and never got a grinding sound from the suspension, and they were various coil sprung trucks. Maybe they make grinding noise until the paint is worn off the contact area, or they just need to be seated well, not sure but I'm happy at this point, I'll let you know if they start making noise again....
jeff1414, let me make sure that mine will stay quiet and I'll send you mine...unless shipping is crazy.