whiring sound from rear end even when rear is on jacks

1969 PONTIAC GTO
119,000 MILES
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MIKE STURGIS
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  • 1 POST
a year ago this sound developed but has not interfered with operating or performance under car looks ok
Jan 19, 2012 at 7:34 PM
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DOCFIXIT
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Is noise constant or does it lessen on acceleration? does noise chang during turning? noise when in neutral and coasting?
Jan 19, 2012 at 9:05 PM