So you are saying that it is a direct swap and I wouldn't need to buy the 3.9 gears? Even easier than swapping the 3.6?

 

Don't waste your money on short tube headers.

Gears make a night and day difference at every rpm in every gear.

 

I will listen to the forum and do the gears before the headers. Hopefully, I will be so satisfied with the gears that I will forget about the header mod.

 

Right, sorry I get it now, I have forgotten the obvious that there is an obvious difference in gears between 6MT and 7AT( which I don't really follow) but what I've been always hearing or reading about has been rather people upgrading to 4.08 and never realized it's just for 6MTs, now I know , thanks for clearing that up


Look at my reply right above ^

 

The 4.08s are a simple swap and relatively cheap for the 6MT, but not so much for the 7AT.

 

That's true because the 7at guys have to buy a 6mt pumpkin.

 

Yes, but you need to make sure it's a 3.90 gear in the diff. I have read conflicting things about the vert diff's having 3.90 gears. Some say it's a 3.3 like every other auto.

 

2013 Infiniti G37 Convertible Specifications | Infinitihelp.com

I had a 2010 Vert 6MT for a few days some years ago. That car was heavy, and you knew it every moment you were driving. The only way they could get more grunt out of that car while having the identical drivetrain is to shorten the gear ratio.

Also back in 2010, I was interested in the new Mustang 5.0 6MT. Back then (or still?), Ford offered a rear-gear set-up in no less than three different configurations. So back to back, I test drove the tall gears, and then the short gears. The difference was amazing. The tall gear setup was more livable in 6th on the highway, whereas the short gear setup was a monster in the low end, almost too much, IMO.

If your car is a DD on the highway, I'd stay away from short gears. But if your car is more of a hobby vehicle, and you really really like throwing it around at lower speeds, then short gears FTW. 4.083 gears are my 2016 mod, and I'm seriously looking forward to it.

Alfredo is a student who lives on an Island. Get the short gears as your next mod, buddy. I'm pretty sure you won't regret it.

 

6mt coupe. Should be a direct swap. No other parts necessary besides oem seals and bushings but I'll start a thread when I'm installing the gears. Look at those bad boys waiting to kill some tires in first gear.

 

So, from what I've read here - Correct me if I'm wrong - For a 7AT, you can swap the 7AT LSD diffs with no trouble, plug and play. But, for the G37S 6MT Vert Diff (3.916) to be put onto a 7AT car, there are modifications needed? Sorry for my ignorance but, can someone dumb it down for me? All this info has me a bit lost

I'd like to have the G37S Vert 6MT Diff on my car so that's why I ask.

 

For the vert, the G37 6MT is the only one with the 3.9 from what I read.

Infiniti G37 coupe, sedan and convertible technical information


Modifications are also needed to fit the 3.6 from the 6MT to the 7AT.

 

Could you tell me the specific modifications? Is it just the driveshaft flanges? Or do I need a new driveshaft too?

 

I'm also still learning about the exact details of this mod. I do know that a new driveshaft is not needed although I read some vibration issues, but I'm not sure how that happens.

 

Driving (high performance) school?

 

No need for that because, first of all, I only drag race like once every 3-4 months and as for circuit racing, the tracks here suck and do not motivate to take my car.

If I lived near Willow Springs or something similar, then my build would already have sway bars, lowering, and an oil cooler.

Before having this car, I didn't mind my island. Now, I hate it. I feel that every bad road (which is 85% of the roads here) is slowly killing my car and there are no tracks that allow me to really feel and bond with my G37.