Roelito78

Guys, I just purchased a 96 Mustang Gt with 96000 miles.I have noticed that thereally is a noise coming from the back of the car mainly while decelerating. It's like a whoop sound or woo woo woo. I can barely hear it while in 4th or 5th gear. I lifted my car from the rear a spun the wheels and can't hear it. I started the car with it lifted and hit the gas and can't hear it outside. Popped the trunk and my wife hit the gas and I can hear it inside the trunk. It sounds like it's coming from both sides. When I'm driving It appears is coming from the rear passenger side. What can it be?

Roelito78

Anyone?

Camster

I'd start with the easy stuff-a thorough check of the rear tires and the rear U-joint.Beyond that,I guess that someone needs to open up the dif.

Roelito78

I will try to post a video today. It appears that the sound is there at any gear while decelerating at low speeds.

Roelito78

I removed the wheel and I noticed this on the rear passenger side hub. Looks like a bit of buildup. My differential was full of oil so no low level. Could this seal/bearing be the culprit?

uberstang1

unclog the breather

Roelito78

Where is the breather located? Could that be the problem?

Camster

On the top of the right axle tube.
Yes,I do think it could be the problem.

Roelito78

Problem causing the sound or the oil trace on the axle?

Camster

The sound.

ps: I suppose that it could do both.