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What is that noise?

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Old Sep 22, 2012 | 11:59 AM
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Default What is that noise?
Had the 74 on jack stands to clean under side. After it was on the ground, each tire revolution, one rear wheel would lock. It would go ok in reverse then in drive the same issue. A littlte more gas, clunk then go another revolution.
The car was raised up and lowered by the frame.
Any suggestions??

THANKS
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Old Sep 22, 2012 | 12:23 PM
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Originally Posted by night3404
Had the 74 on jack stands to clean under side. After it was on the ground, each tire revolution, one rear wheel would lock. It would go ok in reverse then in drive the same issue. A littlte more gas, clunk then go another revolution.
The car was raised up and lowered by the frame.
Any suggestions??

THANKS
By chance do you have "tall" shocks on the rear?
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Old Sep 23, 2012 | 04:09 AM
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No, it has the stock shocks.
thanks
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Old Sep 23, 2012 | 06:51 AM
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What I would look for is if one of the stub axels has pulled out of the differential. When the car is up on stands the rear wheels are hanging by the halfshafts. This pulls on the stub axels and may be the problem. Look at the amount of axel that is exposed on each side. I hope this is not the problem. They should look like this pic.. Another possibility is that you have a worn out u-joint on one of the halfshafts that due to the pulling load, has caused it to lock up. Good luck with it. mike...

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Old Sep 23, 2012 | 01:20 PM
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The noise and clunk is the the u-joints binding. Never operate a C3 in gear with the wheels 'hanging'.
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Old Sep 23, 2012 | 04:03 PM
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After it was on the ground


RIF....reading is fundamental.
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Old Sep 23, 2012 | 11:27 PM
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I checked the axals , no gaps or signs of being pulled out. Going to try rolling again tomorrow. The binding/ clank only comes from one wheel.
Thanks for the suggestings.
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Old Sep 23, 2012 | 11:46 PM
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check your emergency brake cable.
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Old Sep 28, 2012 | 02:04 AM
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Went out today. Brake cable is good. Not loose or stuck. Going to take the drive shafts out for a universal joint check. Thanks for the hepl, everyone.
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Old Sep 28, 2012 | 11:50 PM
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May be it needs some posi additive, check level as well.
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Old Sep 29, 2012 | 09:35 AM
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Originally Posted by night3404
I checked the axals , no gaps or signs of being pulled out. Going to try rolling again tomorrow. The binding/ clank only comes from one wheel.
Thanks for the suggestings.
How did you check the axles? Was it a visual check, or did you lift the car and try to move the wheel? With the wheel off the ground - grasp the top and bottom of the wheel and try to pull/push it in and out.

Should not be much play. If the axle moves quite a lot, could be the shaft is worn and the clip has come off - causing the binding.
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Old Sep 29, 2012 | 09:39 AM
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E brake may have come apart inside the rotor
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Old Sep 30, 2012 | 01:29 AM
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Fluid is full in rear end.
With the car raised, no rear wheel movement when pulling/pushing.
Going to pull the rotors next.

Thanks again for all the information.
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