Like most of you on here, I'm having rear brake issues. My car is the only car on the road (besides other Freestyles) that has more brake dust on the rear than the front wheels. It's at the dealership right now being looked at for steadily increasing rear brake noise. The brakes were trashed before I bought it (dealer changed front pads and rear rotors and pads before I took delivery at 26k miles). About 1k miles later, I took it back in because my wife, for some reason, was worried about the smoke billowing from the left rear wheel well. Women.

Now the brakes are getting noisy again at 34.5k miles.
I assume the dealer is not going to do anything significant, like change out the calipers. My question is, have they changed the caliper design at any point since the Freestyle's inception, up to and including the '08 model? I find it difficult to believe that with all these complaints that they wouldn't have made a change somewhere along the line. If so, a) when was the change made and b) will the new calipers fit the old mounting points?
Thanks,
Mark