I just replaced my rear-passenger side Caliper, Caliper Bracket, Rotor, and Brake-pads due to the rotor, pads, and caliper bracket grinding together.
Vehicle: 2000 Blazer 4WD, recently had front brake troubles, fixed them and they appear to be fine. At that time we noticed the rear-passenger-side outer brake-pad was needing replaced.
Original Symptoms: The brakes were grinding horribly while driving at all speeds (not even braking) after just replacing the pads. The caliper bracket needed replaced because it had been grinding a bit too (I suspect that it was the screeching noise I heard while turning right). Brakes were also inconsistent.
What Changed: New Caliper, Caliper Bracket, Rotor, and Brake-Pads on the rear-passenger-side wheel, bled the brakes at that wheel as well.
Previous Symptoms: The brake pads and rotor are lightly grinding while driving at around +15MPH.
What Changed: Removed one of the "shims" (little thin metal-piece) from inside the caliper bracket (above/between the brake-pads).
Current Symptoms: The rear-passenger-side rim is still getting hot (like stove-top hot or hotter). When going around curves where the vehicle's weight shifts squeaking begins emitting from that corner of the vehicle and continues for a while, eventually dissipating.
- Last Summer: Replaced rear brake-line as there was a leak and pedal was going to the floor. Appeared to be fully working after replacing and bleeding 20+ times.
- Christmas Eve: T-bone accident on rear-driver-side. Replaced the Leaf-spring, some black charcoal box-thing, brake-lines and emergency brake.
- Maintenance 2-4 weeks prior: Front-brakes were grinding due to bad CV-Joint. Fixed the front (both sides) Rotor and Brake-pads. Replaced CV-Joint. Rear brake-pads checked and replaced (inner perfect condition, outer a bit worn).
- "Original" maintenance 1-2 weeks prior: Replaced rear-passenger-side Caliper, caliper bracket, rotor, and brake-pads.
- "Previous" maintenance last weekend: Removed the "shim" (little thin metal-piece inside the caliper bracket above/between the brake-pads). We removed this after realizing the other side didn't have it and the problem hadn't been solved.
Edit: Updated question with vehicle history and better summation of events.
Could bad Ball Bearings be a culprit?
The only other thing I can think to mention is that before removing that "shim" the pads were pushed inside the caliper bracket more than I pushed them in originally (I pushed them to the edge). After we removed the "shim" it moved the pads back to the edge (and therefore no longer touching the rotor directly).