In my opinion, I would still check and change the differential oil. From what you describe, it sounds like it could be a low oil condition in the differential or drive gear misalignment. It's possible that it could just be transmission gear whine too.
You have checked your differential and transmission oil levels since you purchased the Z?
If your from the 350 site I fail to mention, on purpose, I know that this not your first experience with Nissan's.
I know my transmission does whine a bit and I plan to change the oil to a better quality of oil to help the gear whine, among other things.
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[B]2009 & 2017 370Z Touring Sport Autos SOLD
Last edited by Zat_Zuma; 06-02-2010 at 10:16 AM.
Reason: more info
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