Ok here are some pics of my brakes. I think I found a problem!

A the corner of this pad the backing plate is rising. It looks like it is sliding off the pad itself. These backing plates came on the pad I did not have to stick them on. (got a little craze with the goo. doesn't look that bad on the truck). The first pic is from the drivers. The second pic is from the riders side. Poth brake cylinders seam to go in smooth when depressing them to put the pads and caliper back on.
Do you guys think this would be the cause? How about a warranty claim with green stuff? I don't see any other issues with the brakes other than that.
The rotors are not warpped as far as braking it is smooth. The goo looks like it stopped or is helping to prevent the growl when stopping.