I have this noise and I don't know where it's coming from or what it is. I got 4.10's installed over a month ago and the noise just recently started. It almost sounds like brakes rubbing but when the brake pedal is depressed the noise stays the same. I know it has nothing to do with the engine because I hear the same noise with the car rolling and the engine off. Also the noise doesn't happen untill the car warms up a bit. It also does not happen in reverse, and there is no noise present at idle. driveshaft ???? Brakes ??? Anything ????