OK I have a problem! While driving normally (0-70mph), when i brake everything is fine. Now when I drive any faster than 70 then brake it starts out smooth then the brakes start to shake. Is it that the rotors are warped or is it something else. Because when my altama brakes where warped, the brakes shook right off the back. So can anyone help, is it really that the rotors are warped? :bash