hmmm Its now doing it on both rear wheels and now. im also now getting a squeal at low speeds 5mph from the right rear like the sound you get when the brakes are worn and its hitting the sensor. going to take it in again thursday. I even lost 90% power in reverse last night and had to floor it to get into my driveway. And hope to god they fix it this time. This will be there Third attemp to fix this since I bought it april. Ill fill you guys in on the out come of this. Anyone with an 08 crossfire out there having these issues.?