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VHR + FD Gear Ratio upgrades - 3.9 and 4.08

what's the average price of a rear diff swap out?? I think this would be a great mod, the 370z is a little sluggish exiting a sharp turn in second

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Old 04-20-2009, 11:45 PM   #1 (permalink)
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what's the average price of a rear diff swap out??

I think this would be a great mod, the 370z is a little sluggish exiting a sharp turn in second gear, this would help put it more into the powerband. My only concern would be drivetrain wine/noise. I've done this swap before on my last few mustangs 4:10's and the drivetrain noise went up considerably. Maybe the gears weren't set right.
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Old 04-21-2009, 12:35 PM   #2 (permalink)
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Originally Posted by Minicobra1 View Post
what's the average price of a rear diff swap out??

I think this would be a great mod, the 370z is a little sluggish exiting a sharp turn in second gear, this would help put it more into the powerband. My only concern would be drivetrain wine/noise. I've done this swap before on my last few mustangs 4:10's and the drivetrain noise went up considerably. Maybe the gears weren't set right.
I can probably answer this question for you. Were they Motive gears (or other), or Ford Racing Performance Parts gears?
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