My rear brakes (drums) have been sounding pretty shitty lately so I figured they were due for a brake job. It sounds like metal on metal with that really annoying nails on a chalkboard squeal whenever I stop. I pulled the car in the garage and took the rear drums off and the pads look fine as all four have over a 1/4" of pad left on them. Nothing looks amiss other than rusty dust. The OUTSIDE of the drums is badly corroded but the inside looks nice and shiny.
What do I do? Should I replace everything? It’s got 107K on it and I’m guessing it’s had a rear brake job at least once in it’s life (bought used with 100K on it).
What can I do to stop the noise coming from these brakes?