knock, clunk sound from rear!
I know I probably should have searched more about this problem before posting but here it goes.
I have almost 43000 miles on my GTO and I drove the car across country from California to North Carolina and I have started to definitely a knock or clunk from the rear when I let off of the gas pedal. I have no idea what could have caused this I never and I mean never tear on the car. I have an extended warranty with Hendrick Automotive and was thinking that should take it in. I don't know if the rear end is going bad or one of the half shafts could be breaking.
It only makes the noise letting off the accelerator and when its in 1-4 gear, not so much in 5th of 6th. Any help would be greatly appreciated. I hate thinking that something could be wrong with the car.
Thanks in advance.