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Old 10-20-2014, 04:04 AM   #1

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Drives: 2015 1SS, 1LE, Recaro, NPP
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Loud noise when downshifting

Today was the second time it happened. If I downshift from 5th to 2nd gear at ~50 mph it will sometimes make a LOUD noise. It sounds super bad, but I was reading up and it has to do with drive line slack? It only happens when I don't match the revs perfectly.
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Old 10-20-2014, 06:24 AM   #2
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You answered your own question. 1..downshift to 3rd and rev match if you really need such a drastic gear change. 2..if you're downshifting from 5th to 2nd and not properly rev matching then yes, I would expect a terrible noise due to the strain and abuse your putting the entire drive line through.

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Old 10-20-2014, 06:27 AM   #3
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I'd re-think downshifting 5th to 2nd at 50.
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