Rear End noise??! - Team Camaro Tech
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post #1 of 8 (permalink) Old May 7th, 01, 05:20 PM Thread Starter
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Join Date: Sep 2000
Location: Houston, TX
Posts: 202

The 10 bolt in my 69 is starting to make a grinding noise after it warms up and I make a turn with the clutch engaged. Doesn't make the noise when the car is cold, or when the clutch is disengaged. It is in the right rear and goes woomp, woomp, woomp. This has me stumped. Any ideas???
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post #2 of 8 (permalink) Old May 7th, 01, 06:03 PM
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How about a bad wheel bearing?

68 z28 ,68 rs 327 ,73 454 vette, 2 goofy kids
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post #3 of 8 (permalink) Old May 7th, 01, 06:13 PM
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Sounds like a wheel bearing to me too...... Does the inside of the tire have grease streaks all over it?

If itís bad you spank it.... if itís defective you repair or replace it....
he he..sorry dale68z, couldnít resist...


[This message has been edited by Geezer (edited 05-07-2001).]
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post #4 of 8 (permalink) Old May 8th, 01, 09:18 AM
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Wheel bearing in my opinion as well..
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post #5 of 8 (permalink) Old May 8th, 01, 05:12 PM
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Do you know if its a posi or limited slip. If so i,ve seen this type of problem when the posi clutches bind up usually when warm.If so drain and re fill with a good synthetic rear end lube and add a bottle of friction modifier just to be safe.Check to see if the rear end oil is contaminated when you remove the cover.IF so a complete tear down will be necessary to find the problem.One more thing ive seen that can cause axle spline the problem,Have seen the outer spyder gears that the axles spline to waller out the carrier,causing a wop wop wop type noise. Happy hunting.

69 Camaro SS 350 4 speed
55 Belair Sedan Pro Street 355 auto 9''
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post #6 of 8 (permalink) Old Jun 26th, 01, 05:35 PM
Join Date: Dec 2000
Location: Minnetonka, MN 55305
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Did you figure out the problem? I'm having a similar problem. Symptoms are: car is warm, just slowly starting to move (one mph). Sounds like I've just run over the corner edge of a pop can with the left rear tire. I have a '69 Z-11, 3.07:1 ratio 12 bolt Positraction.

[This message has been edited by Dougger (edited 06-26-2001).]
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post #7 of 8 (permalink) Old Jun 26th, 01, 07:18 PM Thread Starter
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I ended up taking it in and had the axle bearings replaced just to make sure. The old bearings looked fine, so I'm not sure this was it. I'd suggest changing the fluids as above. Funny thing is, I haven't noticed the noise since this happened....
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post #8 of 8 (permalink) Old Jun 26th, 01, 09:44 PM
Join Date: Mar 2001
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So it seems to have been bearings then? That's a relief. At first, I was not certain if you meant it was making bumping noises, or whirring/howling noises. The whirring I once had in my car was due to improper balcklash in the diff, and stopping or starting would allow the gears to abruptly slam into each other. Unfortunately, I had just bought the car, and it had obviously been runnin glike this for a long time because the gears were worn and chipped from the constant pounding together.
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