Rusty, do you know what year they switched from 3.692 to 3.91? I have looked up the ratios for my 14 Nismo and the final drive ratio is 3.692, but was under the impression that axle ratio and final drive ratio are two separate things. I remember a long time ago doing the math to figure out which rear to get for an old Camaro I had which required dividing the axle ratio by some number to come up with the final drive ratio. Like I said, that was a long time ago so I may be wrong.
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