Weird noise

[Shortbedred]

Hi guys, I just bought a 2005 Chevy Silverado 1500 4x4, and it has a weird noise coming from the front end, it's almost like a humming noise. It's hard to describe the noise, it's like loud mud tires, Kinda like wa wa wa I guess lol. But I don't think it's wheel bearings because the noise does not change or stop going around curves or anything. I've driven the truck a little over 500 miles and the noise hasn't changed at all. It has new cooper discoverer H/T tires on the front, maybe it's tire noise, or maybe brake noise?

[David Earl Jr.]

Does the noise change with a change in RPMs? Does it change with speed? Does it sound metallic?

[Shortbedred]

No, it doesn't change with rpms, but I did notice that the sound only really starts to show around 60 mph, anything lower and I don't hear it. And I had my girlfriend drive the truck today, and I couldn't hear a thing from the passenger side.