Hey everybody, My Tahoe has been exhibiting some strange braking characteristics for the last few months. When coming to a sudden stop, the rear brakes squeak/grab depending on how hard you stop, and then when you let off and hit the gas, you feel the brakes releasing. I took it to my local brake shop to have the front pads and rotors replaced, and mentioned the rear problem. They said that the rear drums were clean and dry, and that for a vehicle with 271k miles, it stopped fine. Which was good enough for them, but not for me. Does anybody have an idea what this problem could be?