So I've had my 14 gt500 for 5 year bought it new 5 miles on odometer. Today I was taken the car for a ride to a friend's house to put headers on. So the rear seats where folded down because of the parts in the trunk. And I hear a wine coming from the rear end ugh. I have never launched the car hard. I know the rear end is a weak link. If I go to Ford they will not stand behind it. It has been turned it has not cai drop throttle body n headers on it so no warranty. What should I do now?