I am a recent owner of a 2005 Power Wagon and I have been noting a weird clicking noise after I accelorate. I normally hear it a slower speeds, but just after I give it gas and then let off I hear and feel a small but notibable clicking noise from somewhere under my feet. A friend of mine also has one and he is just now noticing the same thing, does anyone have any suggestions? The sevices guys have takin it out a few times and just tell me its normal, something to do with the tranny changing gears or the loading and unloading of the drive train.

 

Sounds odd. Have you checked the heat shields? Also, I think someone else had this problem and it turned out to be the electrics clicking in the tranny. Defintely odd, I'd get a second opinion at another dealer.