I recently installed new Raybestos pads on macined rotors on an 08 GMC and now I get a squeaking at low, parking lot speeds. I have taken them apart and checked contact points for corrosion again and relubed. Thought I had it fixed and next day It it’s still there. It’s not constant though, it comes and goes and seems at this point to occur after driving for some distance and rarely when they are completely cold from sitting. Before the install I had 0 problems. Any suggestions?