Threw on some new front pads and rotors. While I have run into rotors being rusted on to the hub, I didn't realize the wheels could do the same to the rotors. When I went to swap my tires front to back, the rears were actually stuck onto the rotors. Thank God for power blaster and a five pound sledge hammer. ( I was prepared for the front rotors). Might be a good idea to coat them in anti-seize, I did before re-installing them. I'm really glad I didn't find this out on a busy highway, on a dark night.