Highway drone and loud idle?

[Skydance]

Thanks. I believe the noise was coming from a leaky transfer case seal. Ever since I had it replaced, no more drone.

I will have chat with my dealer. Although my transfer case is not leaking as far as I’m aware.

 

[AZGrenadier]

Much less drone after I got some mud up under there. I am certain that my issue was the heat shields. 90% went away simply by some random bends which got rid of the resonance. The last 10% went away with mud.