2017 to 2009 6MT Diff Swap - Install Notes

So following up on my original post about the synchro rev match and gearing. I believe I bought a Nismo diff. It was marked as Nismo but I thought it

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2017 to 2009 6MT Diff Swap - Install Notes

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08-27-2018, 07:41 PM

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ecoplunge

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Join Date: Mar 2012

Location: Orlando

Posts: 45

Drives: 370z TS M6

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Discovery and question

So following up on my original post about the synchro rev match and gearing. I believe I bought a Nismo diff. It was marked as Nismo but I thought it was an error since it didn't have the finned cover. Was the finned cover removed at some year? Was it always optional?

Pretty sure I'm at 3.91 now based on another thread about revs at 70mph.

Quote:

With the stock gear ratio, you are at 2,600 RPM in 6th gear at 70 MPH.

With the 4.08 ratio you are a hair under 2,900 RPM in 6th gear at 70 MPH.

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