Weird sound while in 4auto or 4hi

[DAVfoto]

This may have been answered, but I couldn't find what I was looking for through search. It sounds like a howl/whine but can't be wheel bearings as it's only while in 4wd. Maybe the AWE system? Just wanted everyones thoughts

on another note, what is the stock height to wheel well for this truck. I'm reading 39.5 front, 40.25 rear.

2018 Crew Cab for reference.

 

[CoronaRaptor]

Could be cv joint or front driveshaft, etc. Best to get it looked at.

 

[DAVfoto]

Good to know, I'm still under powertrain warranty so hopefully this can be addressed.