Let me say two things.
1) I love my truck (SUV)
2) Why can't I find a mechanic who will replace my rear calipers?
I've had brake problems with my Hyundai Santa Fe for the last 3 years. I've done rear pads and rotors 4 times in that period and each time I say to the mechanic "don't you think maybe the calipers are sticking" and each time the same response. They're fine, this just happens with these types of vehicles.
Of course this load of crap is followed by words like "Korean steel", rust and other such things.
Riddle me this "auto boy"; Why then is it that I only have this problem with my left rear brakes?
Ya, that silence is the lack of a logical answer.