i find when im driving at speeds of 40 to 70 that when i go to the brakes they start vibrating and pulsating soo bad its like shaking the whole damn truck. I havent really noticed it driving in town. The front brake pads were brand new 5k miles ago. The only thing i can think of, would be warped rotors or the rear brakes need adjusting....i know there was a recall for 00-02 tundras but mines an 03 with the upgraded calipers. anyone know whats my problem?