 So my point is that that inside of the rotor gets rusty, and it could be rusted around the area where the park brake shoe sits, or it could be the lip of the rotor itself is just rusty enough that it continually rubs the backing plate. You know, he's looking at it, and he keeps moving the backing plate away, but it shifts. Things move around. The rust grows. Time goes by, and it may just be cheaper and easier in the long run to put two rear rotors on it and just make sure that things are positioned correctly. All right, kiddo?