Rotors squeal in reverse only.

[Dibbs]

Any ideas on this? I can turn the rotor w/ my hand and it just squeals. Is this an issue of the rotor being glazed? I've got plenty of brake pad all the way around. On thing is that the right hub assembly is about shot. and the left one is starting to get loose. Could this be the contributing factor?

[wprocomp]

could be,I would go ahead an repalce them before anything else arises...funny thing...mine where doing the same exact thing...went through hell trying to figure out what it was right...well all it ended up being was the little bracket that holds the pads in on the caliper was messed up,give that a check and see what happens