Need help, brake squeal from driver side rear. This is everything I have done…. Started by replacing the ds rear axle because original was bent, replaced both wheel bearings, replaced both calipers, both rotors twice, pads 3 times ( third time used ford pads)(yes i greased everything each time and replaced pad retaining clips each time)(pads and rotors swapped out with in 1-2 months total time) checked for rubbing of rotor against anything and have completely removed parking brake pads and hardware. I don’t know what else to do to stop squealing. The squealing was never fixed. It starts 1/2 mile after driving and gradually gets worse. Sometimes I can hear it at 70 or 80 on the highway. Not exaggerating, it sounds like a train coming down the road. Pressing the brake pedal will change the sound or stop it momentarily. If i hit a bump or turn, it starts back up.

 

A good place to start would be to confirm that the axle housing is not bent also.

If you are getting a squeaking , something is rubbing and making contact when it should not , so start looking for shiny spots . Your bound to find something .
This includes the inside of the wheel rim that could be rubbing against the caliper.