Any ideas on this noise!

[MacHaggis]

A few weeks back I had a noise come up while I was traveling. Starting out cold, it kind of snapped and popped when I would turn, left or right, had a rhythm to it, sound kind of like a coat hanger banging against the body, much louder than the click of an axle u-joint. Didn't have to go far to where it would warm up and the snap/clik/bang went away and was replaced by a sort of rhythmic metallic chafing that seemed to be related to the wheel rotating, again only when I turn. Sounds like it's coming from the right front. No noises when I'm going straight.

By the time I got it back to Ohio and to the dealer (figure I'd let them destroy the bearing and housing under warranty) the noise was gone. They looked things over lightly, but there wasn't anything obvious.

Last night I go out for supper and take the Ram, which has been sitting for two weeks, and the chafing noise is back, without the clicking when just starting out.

Any ideas? It doesn't sound like any bad wheel bearing I ever heard, but then I'm also thinking that the Cummins rumble might have masked the sound of a bearing going out and what I've got is a bearing further gone than I ever let one go.

All thoughts are welcome.