How long on average do rear brakes last? we have 133 000 kms now, were on only our 2nd set of front pads/rotors and never had the rears done.... some times when its wet out from day one we had the car youd hear a light scraping from rear wheels. went away after a few applications of the brakes... but now at 133 000 were getting the odd mettalic scree from the rear brakes. think they be gone or just more crud? im gonna have canadian tire take a look when i drive into thunder bay tomorrow (4 hrs drive). any one know w here i can get a good deal on drums incase i need them, dealer wants 100.00 each