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      07-31-2017, 09:54 AM   #6
Richbot
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Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

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The factory fill didn't have enough/any FM on some of these. Changing to the FM-doped gear oil was a standard procedure to address customers complaining of low-speed chattering from the diff.
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Last edited by Richbot; 07-31-2017 at 10:09 AM..
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