I know, I'm a newb but I did do my hw and didnt find the same prob.
When I brake there is a squicky (sounds exactly like a frogs ribit) noise comming from the back of my car.
I assume its my springs/suspension but I do not have much knowledge on these things, any help appreciated.

btw I do have aftermarket eibach springs
problem started today

 

Is it a squeel? If so the rear pad wear indicator could be pushing against the rotor. If it makes that noise b/c you're applying the brakes and the car is diving then maybe the dead coils on the spring are rubbing together or more likely, the rear shocks are blown.

 

its more manly then a sqeek, if you know what i mean

 

Went to a mechanic yesturday, it is my left front strut, about 110 to fix