Rear end pops when you turn

LEEHAMM3657

MEMBER
1984 FORD MUSTANG
0.5L
V8
2WD
MANUAL
67,825 MILES

It just started you can feel it in the car.

Friday, February 2nd, 2018 AT 4:03 AM

5 Replies

CJ MEDEVAC

MECHANIC
11,004 POSTS

Does it have a posi-traction rear end? This happens when the sider gears or locked up.

The Medic

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Friday, February 2nd, 2018 AT 5:43 PM

LEEHAMM3657

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3 POSTS

Yes and something popped loud and the drive shaft moves but do not move.

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Friday, February 2nd, 2018 AT 6:03 PM

CJ MEDEVAC

MECHANIC
11,004 POSTS

You are saying that when you let the clutch out, the driveshaft rotates, the vehicle does not move.

I have to ask this one! Were you dogging it out when it happened?

The Medic

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Friday, February 2nd, 2018 AT 6:29 PM

LEEHAMM3657

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3 POSTS

No, I did have to give it a little because car was coming. I was in town and my car is loud.

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Friday, February 2nd, 2018 AT 9:12 PM

CJ MEDEVAC

MECHANIC
11,004 POSTS

In the beginning, I was going to suggest that maybe your differential was "popping" because that maybe your posi-traction differential lacked hypoid fluid (needed changing + hypoid additive) or needed to be driven in tight figure "8"s to lubricate the clutch discs within the differential.

After your second response, I am now leaning towards something broken within the differential (not good) or maybe you broke an axle (a little bit better!).

The Medic