What is this noise?

Only happens at 45+
Differential gears?
https://youtube.com/shorts/WNSFSrB33Fc?si=E_YrqANsfAxUj03g

 

https://youtube.com/shorts/4pp501k7Wbs?si=DyrNg7PFam1W2tl8
little better

 

how many miles?

 

135k

 

...can you tell whether it might be coming from front or rear?

 

Front.. constantly get a whirring that gets real loud and sounds rotational at 45. Then I occasionally get that clunking that you may be able to hear in 2nd vid

 

....I can't hear much from the videos....I'd add here what you have (good with gear oil changes, did you replace the needle bearing, etc.) and haven't done to it, and wait for more posters......

 

Replaced needle bearing and changed gear oil yesterday. No clumps of metal. Replaced UCAs and sway bar links as well. Carrier bearing on driveshaft has play. Noise around 6-7 seconds into 2nd vid comes from right under front side

 

If you feel vibration when accelerating or decelerating is driveshaft

 

front wheel bearing hub? another easy way to diagnose is put the truck on jack and grab the front wheel at 12/6 o clock and give it a shake. It should be rock solid.