Noise over 50 mph

[rmpapen]

2015 Silverado LT CC 4wd 5.3

When I get over 50 mph it starts to make a humming or growling noise that cycles on and off. Hard to describe it. It's worse between 60-65. This started at about 600 miles, now has 900 on it. Anyone else experience this?

[fondupot]

are you driving in Auto 4wd?

[rmpapen]

No,2wd.

[fondupot]

No,2wd.

 

Could be a bad wheel bearing. It is rare on new vehicles, but can happen.