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02-28-2024, 08:25 AM
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#1 |
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Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,326
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Sounds like tire rubbing, but its not
Working on my 79. Sounds like the driver rear tire is rubbing something. Pulled the tire and drum off, no marks. Fired up and put in gear, put a stethoscope on the outer bearing, sounds smooth. Put it all over the diff, sounds pretty smooth.
I installed a posi unit, but the noise sounds like its coming from the tire area. Thoughts?
__________________
Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart  My build 2008-2016. http://m.imgur.com/a/bURrE |
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02-28-2024, 08:59 AM
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#2 |
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Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,610
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Re: Sounds like tire rubbing, but its not
Park brake not fully released.
Collapsed rear brake hose keeping rear brakes partially engaged. Rear shoes adjusted too tight. Check drums for heat after testing. Loose exhaust parts rattling. Other loose parts rattling. |
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02-28-2024, 09:58 AM
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#3 |
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Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,326
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Re: Sounds like tire rubbing, but its not
Park brake not fully released.
it is Collapsed rear brake hose keeping rear brakes partially engaged. Brand new hoses Rear shoes adjusted too tight. Maybe Check drums for heat after testing. will do Loose exhaust parts rattling. Other loose parts rattling. Everything tight
__________________
Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart My build 2008-2016. http://m.imgur.com/a/bURrE |
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03-09-2024, 10:47 PM
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#4 |
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Born Psycho
 
Join Date: Feb 2001
Location: brentwood,cal,usa
Posts: 4,935
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Re: Sounds like tire rubbing, but its not
are the drums warped and hitting the backing plate ?
__________________
jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA |
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03-11-2024, 07:22 AM
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#5 | |
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Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,326
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Re: Sounds like tire rubbing, but its not
Quote:
__________________
Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart My build 2008-2016. http://m.imgur.com/a/bURrE |
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03-11-2024, 10:12 PM
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#6 |
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Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,610
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Re: Sounds like tire rubbing, but its not
Assuming it is up on stands, pull the tires, snug the drums with reversed lug nuts and repeat the test. If the noise is gone, suspect out of balance/out of round rear tire(s) or poorly fitting wheels. If the noise stays, pretty well eliminates tires/wheels as the problem.
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