Squeak?

[El Capitan]

Ive got a strange squeaking noise coming from what sounds like the rear dif. the fluid is fine and it only does it in reverse. First thought was u joints then when it only did it in reverse kinda ruled that one out, so im thinking pinion gears...........any thoughts?

 

[Rivieraracing]

Might be parking brake hanging up, try backing up and try slowly applying the parking brake and see if the tone changes!

 

[El Capitan]

So It Ended up being burned and cracked rotors cracked brake pads with 40% life left nothing left on my park brake so yea.