sounds from rear of car

[Iscariot]

one has been happening for about a week. its a constant squeaking, it starts when i have been driving for a while, and it stops as soon as i hit the brakes. engine braking doesnt do it, so im thinking that its something with maybe a rotor being loose?

the other one started today, its like a light grinding, and this one doesnt go away when i hit the brakes...

any ideas? its really cold so ill take the wheels off on monday in class

[CleanSfourteen]

How are your brake pads and rotors??? Have you checked them for wear marks?

Either something is loose, or you need brakes...