You should also use the spray disc pad silencer but it does sound like you have another problem. The retainers are supposed to keep them from rattling so they may need to be bent a little...but i can't SEE it. LOL
P.S. the spray will keep the IB pad adhered to the piston and the OB pad adhered to the caliper. This will help it slide as one piece. Don't spray the slider "hooks" (I'm not talking about the ob pad hooks that I told you to bend...those you can spray)
