YA,.i thought it was due to the bilstiens, but the more i research the more stock trucks i find with this problem. Did u try shifting into 4x4 while in park. That stopped it for me. But i will definitely be bring it up next time the truck goes to the dealer. Would like to know what your guy says. Keep us posted.
It didn't matter if I shifted on the fly or park. Even 4x4low shifted in neutral with brake on would make these noises. You could feel parts slamming together too. Not pleasant. Will update after repairs.