4.08 Frontier gear swap

blumango · 11-10-2013, 10:06 AM

Quote:

Originally Posted by dthem370

I will list the parts and stuff I got when I create my review. I personally kept the stock VLSD but I wish I had the extra money to get a better limited slip. I should be fine though since I will be driving it mostly on the street and my car will see very little track time.

Sorry guys, I just noticed that the part number is listed somewhere already. Managed to find them eventually.

Dthem, can I confirm a couple of things:

I have a Sports 7AT with VLSD. Can I buy a manual open rear diff without VLSD and transfer mine over? Or, if budget allows for me to purchase a Quaife, can I install it inside the manual rear open diff that comes without VLSD? Or must I buy a sports manual rear diff with VLSD? I'm about to make my order so I just want to be sure.

Thanks!

Joetib07 · 09-16-2014, 09:03 PM

Hey guys I'm new to the forum and got a '12 370z sport 6spd and wondering if you guys have had any problems with the spacer 38154-0c000, I'm currently in the middle of doing my 4.08 swap with the list that Jnaut provided and wanted to make sure it's the correct spacer before pressing everything back together

Juice14 · 01-21-2015, 12:40 AM

Old tread, first of all thanks for the info from all you guys.

I know its been a long time since some of you installed the 4.08 gears, but I wanted to ask you about having a lightweight flywheel + 4.08 gears combo.

Does the car feel "too responsive and jumpy" for DD? I want to do the 4.08 gear upgrade but in the future i'll also do the lighter flywheel so maybe 4.08 is not the best option for me, maybe 3.90?

what's your input on this?

thanks ahead of time

12nismo · 01-21-2015, 08:51 AM

I have the Southbend 13lb aluminum flywheel, 4.08's and an NST lightweight crank pulley and the car is VERY responsive but I wouldn't say too responsive. In all honesty, each of the listed mods aren't THAT noticeable by themselves (I did one at a time) but together that make for a nice bump in the cars pep. IMO the flywheel, pulley and gears all compliment each other. if you're doing gears, go with the 4.08's...I doubt you'll feel much of a defference with the 3.90's. Definitely not "too jumpy" when paired with a lightweight flywheel.

forza370z · 01-21-2015, 01:51 PM

Quote:

Originally Posted by 12nismo

I have the Southbend 13lb aluminum flywheel, 4.08's and an NST lightweight crank pulley and the car is VERY responsive but I wouldn't say too responsive. In all honesty, each of the listed mods aren't THAT noticeable by themselves (I did one at a time) but together that make for a nice bump in the cars pep. IMO the flywheel, pulley and gears all compliment each other. if you're doing gears, go with the 4.08's...I doubt you'll feel much of a defference with the 3.90's. Definitely not "too jumpy" when paired with a lightweight flywheel.

Do you have SB clutch as well? How many miles on the flywheel? Any issue?

12nismo · 01-21-2015, 04:36 PM

Yes, I have the Southbend Stage 2 clutch paired with the flywheel. about 10k miles...no issues whatsoever.

tranceformer · 01-21-2015, 09:30 PM

Quote:

Originally Posted by Juice14

Old tread, first of all thanks for the info from all you guys.

I know its been a long time since some of you installed the 4.08 gears, but I wanted to ask you about having a lightweight flywheel + 4.08 gears combo.

Does the car feel "too responsive and jumpy" for DD? I want to do the 4.08 gear upgrade but in the future i'll also do the lighter flywheel so maybe 4.08 is not the best option for me, maybe 3.90?

what's your input on this?

thanks ahead of time

At one point I had: JWT 16 lb flywheel, Stillen crank pulley, and 4.08 gears. Not too responsive, just fun to drive. Do it.

370Z JT · 01-23-2015, 02:47 AM

Looking for info. I have a auto with stock vlsd. Will a g35, g37 manual with stock vlsd differential work with the swap?

01-21-2015, 08:51 AM	#154 (permalink)
12nismo Base Member Join Date: Apr 2012 Location: Houston, TX Posts: 153 Drives: 2012 370z nismo Rep Power: 15	I have the Southbend 13lb aluminum flywheel, 4.08's and an NST lightweight crank pulley and the car is VERY responsive but I wouldn't say too responsive. In all honesty, each of the listed mods aren't THAT noticeable by themselves (I did one at a time) but together that make for a nice bump in the cars pep. IMO the flywheel, pulley and gears all compliment each other. if you're doing gears, go with the 4.08's...I doubt you'll feel much of a defference with the 3.90's. Definitely not "too jumpy" when paired with a lightweight flywheel. __________________ nismo Z34 12 0209 JTran Motorsports//Stillen//Fast Intentions//EcuTek//Z1 Motorsports//Eibach//BRIDE //Zspeed//Carbon Signal//Houston Halos//Southbend//Whiteline//TWM//NonStopTuning//Doran Racing Last edited by 12nismo; 01-21-2015 at 08:53 AM.

01-21-2015, 04:36 PM	#156 (permalink)
12nismo Base Member Join Date: Apr 2012 Location: Houston, TX Posts: 153 Drives: 2012 370z nismo Rep Power: 15	Yes, I have the Southbend Stage 2 clutch paired with the flywheel. about 10k miles...no issues whatsoever. forza370z likes this. __________________ nismo Z34 12 0209 JTran Motorsports//Stillen//Fast Intentions//EcuTek//Z1 Motorsports//Eibach//BRIDE //Zspeed//Carbon Signal//Houston Halos//Southbend//Whiteline//TWM//NonStopTuning//Doran Racing

01-23-2015, 02:47 AM	#158 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	Looking for info. I have a auto with stock vlsd. Will a g35, g37 manual with stock vlsd differential work with the swap? __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

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09-16-2014, 09:03 PM	#152 (permalink)
Joetib07 Base Member Join Date: Dec 2012 Location: Nj Posts: 1 Drives: 2012 nissan 370z Rep Power: 13	Hey guys I'm new to the forum and got a '12 370z sport 6spd and wondering if you guys have had any problems with the spacer 38154-0c000, I'm currently in the middle of doing my 4.08 swap with the list that Jnaut provided and wanted to make sure it's the correct spacer before pressing everything back together

01-21-2015, 12:40 AM	#153 (permalink)
Juice14 Base Member Join Date: Nov 2011 Location: International Posts: 132 Drives: Red 370Z Rep Power: 14	Old tread, first of all thanks for the info from all you guys. I know its been a long time since some of you installed the 4.08 gears, but I wanted to ask you about having a lightweight flywheel + 4.08 gears combo. Does the car feel "too responsive and jumpy" for DD? I want to do the 4.08 gear upgrade but in the future i'll also do the lighter flywheel so maybe 4.08 is not the best option for me, maybe 3.90? what's your input on this? thanks ahead of time