Humming noise when slowing down

[St3vo]

I just started noticing this noise. When I give my truck light gas there’s a slight humming noise but when I let off the gas to slow down the humming noise starts about 50 mph and is really noticeable at 33ish mph and I need help pinpointing the problem.

[St3vo]

[CrawlSlow]

The clip you attached doesn't work...

[St3vo]

I tried to delete it I’m new to the forum the video was when I let off the gas and the speed dropped to around 32ish the whining turned into a growl sound and I could feel it in the floor board. And if you know how to upload a video and it work please help so I can figure it out 

[St3vo]

Edited July 30, 2021 by St3vo
Video isn’t working