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VHR + FD Gear Ratio upgrades - 3.9 and 4.08

installed 4.08 final drive and the car is AWAKE, it is a blast to drive hard now... Its a pretty darn good mod as far as increase in speed and

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
VHR + FD Gear Ratio upgrades - 3.9 and 4.08

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11-28-2010, 09:53 PM	#12 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 21	installed 4.08 final drive and the car is AWAKE, it is a blast to drive hard now... Its a pretty darn good mod as far as increase in speed and performance go. But I have a pretty obvious whine from my diff now... I thought this should of been very minimum with the OEM 4.08 final drive. Its pretty loud at 80 and very noticable even crusing as soon as it gets to about 3k RPM... Is this normal ? __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-) Last edited by chuckd05; 11-29-2010 at 12:18 PM.

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