Thread: 12 zl1
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Old 02-28-2016, 10:23 PM   #2
nighttowl
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Drives: 2018 ZL1 1LE
Join Date: Dec 2011
Location: TX
Posts: 1,905
Sounds like the diff fluid is not compatible with the clutches in the differential and you are getting chatter.
Change the fluid out with the correct stuff, or a compatible fluid and it should go away.

There is a TSB where you do some figure 8's to break in clutches i believe.
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