what would cause rear brakes to squeak? i have this horribly loud squeaking noise from my rear brakes that almost makes me not want to drive the car. i took a look at it today and it looks like when i hit the curb (long time ago) the bracket that holds the caliper and pads, was touching the bottom of the rotor, well i shaved that now nothing is touching the rotor and when i put it all back together and drove away, it was louder than ever.

also, how hard is it to swap a carrier from one rear to another? with the gears already installed, could i just take it out, and put it into another one?

one last question, 3.23 gears are in a 2 series carrier right?