2003 GMC Envoy Read End Noise

2003 GMC ENVOY

89,000 MILES • 6 CYL • 4WD • AUTOMATIC

RUSS-99

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When I excelerate my auto makes rear end noise?
Like a humming noise?

Could it be the followint

A. Muffler
B. Catalytic Converter
C. Rear End

Feb 18, 2010 at 8:40 AM

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