I have a 2001 GC and I have begun to notice a grinding sound when braking or turning at low speeds (5-10mph). However this is only happens mainly after it has snowed etc. I thought i might have been attributed to the salt and sand on the road. But now that the snow is gone off the road I have heard it once or twice. Would cold temperatures (0-10degrees) have anything to do with it? Someone told me its my rear diff, but im not seeing how its related. Any thoughts would be appreciated.