Greetings citizens of TMO; I've had a saga with rear brakes that just won't quit. The left rear caliper appears to have gotten stuck this morning at work... pulled into my parking spot and was overwhelmed a bit by the alluring odor! So this started several months back. I swapped brakes to go to Roebling Road in January, and the brakes stuck to the point that it was dragging the car down BADLY. Like, you couldn't accelerate BAD. Then suddenly, they freed up after a mile. IT was also both brakes that particular occasion. Fast forward a couple of months. The LR sticks on the way home from work, and it hasn't been bothered in a few weeks. With two incidents in close succession, I replace calipers. Then I go through the bit where I had calipers not stop leaking. I replaced both rear calipers with new Motorcraft parts ordered through Tasca Ford just a few weeks back. I swapped my brakes over to street after my Charlotte adventures Sunday. I also had a crack in a left rear rotor (not uncommon honestly - need to upgrade to those bigger ones you guys tell me about) and I move on with life. I get to work this morning... the left rear brake was hot after getting to work, but the car never seemed to drag. It was hot enough that the cue was a smell when I got out of the car that overwhelmed again. I had the brake cylinder open when I pushed the piston back in. I did notice these new motorcraft cylinders seemed to be stiffer to turn back in than the parts store rebuild but I thought that could be better quality seals. They weren't overwhelmingly difficult, they were just more difficult than my parts store ones. I'm thinking this is connected to changing pads somehow or another. But... it's a game that is just getting old. I did not bleed the brakes - figured I'd wait until I change race brakes back in. The system was never opened beyond a master cylinder cap.