Strange noise coming from rear left passenger's side

I've noticed a strange consistent noise coming from the rear left passenger's side that is loudest at about 45 mph when I lightly step on the gas pedal, but stops when the gas pedal is fully released. It's pretty annoying, any idea what it might be would be appreciated.

 

I have the same noise that starts about 40 to 45… starts back up a lot at 78. Only on with gas being pressed. Comes from rear passenger window for me. I have been watching this thread…. No real solution yet I dont think…

https://www.tundras.com/threads/whistle-above-65-mph-not-wind-noise.125509/

 

I found a video demonstrating the exact sound I can hear
https://www.youtube.com/watch?v=V_Ncd4qvsA0

 

According to one comment on this video it can be fixed by replacing the rear carrier assembly of the differential

 

None at all

 

Mine was the rear diff itself. Metal shavings in the gear oil upon inspection. Noise is gone after replacing the diff.