Went to install my Hawk 5.0 brake pads this morning and noticed that my one rear rotor has a ring of rust where the pad isn't making contact and my one wheel just isn't as dirty as it should be. Something is wrong with the caliper, so I start with that one first. Turns out, both guide pins are seized into the bracket. I got one out, but the other one broke inside the bracket. The car has 30k miles on it, but I decided against taking it to the dealership since each trip there with my wife's Escape has resulted in many trips back to repair damage to the wheels and anything else they touched. I called all the local dealers in case they had the bracket, but they had all closed for the day. Tried all the auto parts places, but most said there aren't any rear disc brake parts for the Fiesta according to their catalog. I attempted to drill out the guide pin and at least put in a new pin until I could find a bracket. I drilled into the bracket just fine, got out my large hammer and a pin and started to beat on the guide pin. After an hour of beating and alternating penetrating fluid and beating. I gave up and finished the rest of the brakes. Took out all of the pins and none had any signs of rust. The driver rear was the only bad one. The boots looked fine, so no issues there. Oddly, this is the second ST that I have worked on with the driver rear caliper guide pins seized and my dad's Fusion Sport had the same issue around the same miles and on the same side. Moral of the story, if you live where they use salt, take the pins out annually and grease them or buy spare brackets before you start to replace pads. Luckily, my dad is heading to Europe next week so I will borrow one of his cars until I track down the bracket.