Potential issue with differential?

2001 MAZDA TRIBUTE
110,000 MILES
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TQBIRD1
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The engine of my Mazda Tribute (2001) is letting out what I could best describe as a "whining" noise when running. It relates to the transmission I believe, as the RPM increases, so does the volume of the "whine". After a bit of driving, the sound fades away. Is it possible that this could be an issue with the differential?
Oct 6, 2012 at 2:39 AM
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SATURNTECH9
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Will it do.it in park and reving the engine up?
Oct 6, 2012 at 3:23 AM
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KHLOW2008
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A differential noise would not fade away. The noise is transmisson related and more information is required for us to understand.
Oct 6, 2012 at 7:56 AM
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