Originally Posted by Dackelone
I think you are using the wrong terminology. The backing plate is what the brake pad is afixed or glued onto. Perhaps you mean the brake pad heat shield? The backing plate only come with new brake pads.
here is a picture of the brake pads...
You are correct, it is technically improper terminology, but it's what everyone seems to be familiar with here (reference the various 135i Brake Issue threads where even the guys from ER, Berk, and scott2 use this term for it, or search "backing plates"). I think most people know I'm referring to the very thin metal "shim" portion glued to the backside of the true backing plate, but I could be wrong.