I am going throught the same thing with my 96 ls400. I hear grinding sound, I notice that my back right rotor is shot. I take the car to the mechanic and he tells me (4) calipers are seized????????? How is that possible. $1200 in work. He wants me to put on 4 new calipers, with new pads and new rotors. I am assuming that the moron b4 me put on cheap pads. I don't know much, so I ordered 4 rotors off ebay (this should be interesting). But trying to find brake calipers is a nightmare. I want to do this myself If I can. Anyone wanna give me a quick DIY on how to go about this. If I don't need to change my calipers I don't want to. I am willing to try to do the job myself it is simple. How would I take off the calipers and clean the pins? Any advice is appreciated.