06 5AT Final Drive Be all end all
#1
06 5AT Final Drive Be all end all
So many conflicting answers here is it the 3.337 or 3.538 Final Drive in the 06 coupe? FSM says one thing and the owners manual says something else. What is correct? Is there a accurate chart out there? Looking to upgrade my open dif 06 coupe with a VLSD and I would prefer to just swap the whole pumpkin with something that has a 4 bolt flange. Been looking at g37 4 bolt flange diffs, this is more confusing that I would like. Please help.
#2
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Retyping this from one of LoSt180's posts.
V35 AT 3.3 FD
V35 MT 3.5 FD
V36 5AT 3.69 FD
V36 7AT 3.3 FD
V36 MT 3.69 FD
I believe all MT's came VLSD, not sure about the AT options.
The 370Z and G37 had a couple of flange options on the diff (basically the AT was different bu MT should he the same) but they can be swapped around, you would have to Google it.
V35 AT 3.3 FD
V35 MT 3.5 FD
V36 5AT 3.69 FD
V36 7AT 3.3 FD
V36 MT 3.69 FD
I believe all MT's came VLSD, not sure about the AT options.
The 370Z and G37 had a couple of flange options on the diff (basically the AT was different bu MT should he the same) but they can be swapped around, you would have to Google it.
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Blue Whale (03-13-2018)
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#9
Wouldn't a good way to tell would be to take said 3.5 5AT 06 and take the RPM at 60mph vs a car with a known 3.3? I'm willing to test this out if someone with a 3.3 car would like to help.
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Make a mark on top of the axle output shafts and the propeller input shaft (just make them all straight up for simplicity), turn the input shaft and count the revolutions until the axle shaft mark is straight up again. The input shaft will either be slightly BEFORE or almost exactly 180° from the original position depending on if it takes 3.3 or 3.5 revolutions to turn the axle shaft.
Make sure to turn the axle shaft by hand and verify the opposite axle turns the same direction to ensure you do indeed have a VLSD. Next hold one axle shaft and try to turn the other one independently, there will be very stiff resistance but they will turn independent. Was just showing a neighbor how to tell which is which last weekend when doing a diff bushing.
Edit: if they turn the same direction but there is not much resistance turning them opposite of one another the VLSD clutch pack is shot.
Make sure to turn the axle shaft by hand and verify the opposite axle turns the same direction to ensure you do indeed have a VLSD. Next hold one axle shaft and try to turn the other one independently, there will be very stiff resistance but they will turn independent. Was just showing a neighbor how to tell which is which last weekend when doing a diff bushing.
Edit: if they turn the same direction but there is not much resistance turning them opposite of one another the VLSD clutch pack is shot.
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There's some factory stampings on it but I have never looked up what they mean, I usually just turn them by hand to verify what it actually is but that's just an old habit because you never know what you're ACTUALLY getting just by looking at it Obviously that wouldn't work for one you buy on the internet though.
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ALRIGHT! Found something super useful over at Z1's website. They have an OFFICIAL chart with all the possible FD gear ratios. Yes the 2006 G's ALL came with the exact same ratio regardless of coupe/sedan/AT/6MT
https://www.z1motorsports.com/upload...GearRatios.pdf
https://www.z1motorsports.com/upload...GearRatios.pdf
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Blue Whale (03-18-2018)
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2006 5AT came with a 3.5. At least the ones with the sports package did.
You can go to a 3.7. The difference is small but still noticeable. There is also some misinformation on this forum if you search through older threads. Changing the FD on your car will affect the accuracy of your speedometer also, something that didn't happen with the earlier models.
You can go to a 3.7. The difference is small but still noticeable. There is also some misinformation on this forum if you search through older threads. Changing the FD on your car will affect the accuracy of your speedometer also, something that didn't happen with the earlier models.
Last edited by herrschaft; 03-14-2018 at 12:21 AM.
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Blue Dream (03-14-2018)