If it is a Toyota, they do not know how to fix the squeaking brakes either. Even after replacing all the pads and machining the rotors and rear drums
The drive belt may be slipping or going bad.
New brakes do not grind. If you replaced the brake pads and resurfaced the rotors you may hear a bit of a sound but it is normal until the pads and rotors wear during normal driving.
buy good pads, and install and have rotors machined
It depends on your driving style and the condition of the calipers. If you ride the brakes or otherwise drive in such a manner as to cause the brakes to overheat, the rotors will warp prematurely. If you are constantly in stop-and-go driving conditions you will wear out the brake pads and rotors much faster than someone who drives greater distances and seldom uses the brakes. I've seen some people who get little more than 20,000 miles from brakes and/or rotors. My last brake pads and rotors had over 70,000 miles when I changed them, but then, we drive long distances here.
Frozen brake caliper
form_title=Rotors Replaced form_header=Improve your brake performance with replacement rotors. We will help find you an expert auto technician to install new rotors. What is the year, make and model of your vehicle?=_ Have you noticed any unusual shaking lately when you press on the brakes?= () Yes () No () Not Sure How long has it been since you had your brakes replaced?=_ Have your brakes been squealing or making any noises? = () Yes () No () Not Sure
Cheap metallic brake pads always squeal. It is recommended to turn the rotors and lube the slide pins. Is it four wheel disc? Make sure the noise is coming from the axle that the brakes were replaced. Do this; replace pads with ceramic brake pads, resurface or replace rotors, and lube all metal moving parts.
Have your brake pads checked. If the squeaking sound stop when you apply the brakes it may be your brake pad wear indicators rubbing the rotors to warn you to have your brake pads replaced. If you ignore it damage will result when the rotors and metal brake pad backing or rivets rub after the brake pad linings are worn away.
It must be the rear brakes at fault.
Your brake rotors are warped and need replaced/resurfaced.
This is probably due to worn brake rotors on the brakes, if there is no vibration when driving then this will be the cause.