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Rubbing noise?

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Old Sep 4, 2022 | 06:37 PM
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Default Rubbing noise?

On my ‘72 I noticed when I turn slowly I hear what sounds like the tires are rubbing though I know they aren’t. My first guess was maybe uv joints? It wouldn’t always do it taking off straight from a stop light but would when turning slowly every time. Any ideas on what I should be looking at? Sounds like it’s coming from the rear.
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Old Sep 4, 2022 | 06:55 PM
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When was the rear end gear lube and posi fluid last changed? Change that out, use a 4 Oz bottle of GM posi lube, then do some figure 8's to work it into the clutches.
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Old Sep 4, 2022 | 08:59 PM
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Originally Posted by capevettes
When was the rear end gear lube and posi fluid last changed? Change that out, use a 4 Oz bottle of GM posi lube, then do some figure 8's to work it into the clutches.
will do. I’m also reading about a snubber bushing that sounds like my symptoms.
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Old Sep 4, 2022 | 09:04 PM
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Originally Posted by capevettes
When was the rear end gear lube and posi fluid last changed? Change that out, use a 4 Oz bottle of GM posi lube, then do some figure 8's to work it into the clutches.
just ordered a bottle of the GM additive. What rear end fluid should I use?
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Old Sep 4, 2022 | 09:51 PM
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Not my photo but would use 2 bottles additive
https://www.corvetteforum.com/forums...id-change.html


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Old Sep 5, 2022 | 05:53 AM
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Originally Posted by Armybyrd21
just ordered a bottle of the GM additive. What rear end fluid should I use?
I have always used 80/90 weight gear lube and one bottle of the posi lube.. I have over 300,000 miles on my original 65 rear end with no issues.
Some use 85/140, some use 2 bottles posi lube.
Snubber bushing is a possibility but I would start with this. May solve your issue and just good proactive maintenance in any event.
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Old Sep 5, 2022 | 09:49 AM
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Have you done any work on the rear parking brake shoes lately ?
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Old Sep 5, 2022 | 10:24 AM
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go to a parking lot with a friend and walk along side the car to pinpoint the noise when turning ,, a little extra ears go a long way
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