Wheel Bearing issue?

[StayinStock]

Anyone ever had to replace a wheel bearing? I have a low growl coming from the back, most noticeable at low speed, bit of vibration associated with it. I did some searching but didnt come up with much. Also I know this is a dumb question but what is the factory warranty mileage? Debating if I should just knock this out myself or let ford deal with it. Just hit 45k.

 

[Chamorro85]

Dumb question…have you checked tires to make sure not worn out?

 

[GearHead_1]

And of course the brakes.

 

[StayinStock]

Dumb question…have you checked tires to make sure not worn out?

Brand new Pirellis put on about 2 months ago, tires look fine, no visible damage. Brakes are nearing replacement time but this feels more like a wheel bearing issue the way it acts. I can't feel it in the brake pedal.

 

[Cdubya]

Make sure nothing is caught in between heatshield and rotor