2007 Chevy Avalanche - Squeaking sound from rear end?

[Silver17]

There is a squeaking sound, coming from the rear end of the truck. It happens every time the truck is in movement. When I'm in the freeway I can here it louder. Once I touch the break pedal the sound stops, but once the truck is in movement again the sound continues. Anyone know what it might be?

[skyco81]

Well your rear end is still moving even when you put on your breaks so its not that. It stops when you apply your brakes. Anything coming to mind yet. Go have your breaks checked.