No I don't, but my truck only has 2000 miles on it now.
My '04.5 Dodge/Cummins made a sound like this and it had to do with the "phasing" of the pulses of the high pressure fuel pump and the pistons. It caused some minor gear lash sounds. To fix or lessen the sound you needed to pop the gear off the high pressure pump and rotate the engine in 30 degree increments until you found the "sweet spot". The pump gear was on a tapered shaft, not a keyed shaft, so you were not retiming anything, but re-arranging the pulses.