Truck Spec: 2003, NV5600, 108K, long bed

I have a slight noise somewhere in the drive-line. It's not loud, no vibration, but I can hear it speed up the faster I go. It occurs after I let the clutch out and give some throttle, when I coast or push in the clutch it goes away. I opened my rear slider and could hear it a little more clear than just having the drivers window down.

Any ideas before I take it to the shop?

Thanks

 

Possibly a U joint going out?

You may have to drop the shaft to flex the joints by had to tell.

 

It sounds like the through bearing to me.