4.08 Gear Install (7AT) Review

Chuck33079 · 10-31-2013, 03:58 PM

Quote:

Originally Posted by critical

VHR + FD Gear Ratio upgrades - 3.9 and 4.08

VHR + FD Gear Ratio upgrades - 3.9 and 4.08

Right, I was just curious what vehicle came with it from the factory. A Frontier?

critical · 10-31-2013, 03:59 PM

Quote:

Originally Posted by Chuck33079

Right, I was just curious what vehicle came with it from the factory. A Frontier?

it's in the links i posted

2005-2006 Skyline sedan w/VQ35DE and CVT

critical · 10-31-2013, 04:31 PM

bad permalink :P

andre12031948 · 10-31-2013, 04:55 PM

I remember reading something about swapping a manual's trans rear pumpkin if you want to replace a plain one with one that has limited diff.

Is that correct? I have a whole M/T pumpkin w LSVD, I mean VLSD

and I'm looking at a base automatic 370. Is that the one ^^^ I swap to get VLSD??????

Thanks

critical · 10-31-2013, 05:16 PM

Quote:

Originally Posted by andre12031948

I remember reading something about swapping a manual's trans rear pumpkin if you want to replace a plain one with one that has limited diff.

Is that correct? I have a whole M/T pumpkin w LSVD, I mean VLSD

and I'm looking at a base automatic 370. Is that the one ^^^ I swap to get VLSD??????

Thanks

what do you want? lol

andre12031948 · 10-31-2013, 05:26 PM

Quote:

Originally Posted by critical

what do you want? lol

Swap a pumpkin with LSVD into a base automatic car. I mean VLSD

critical · 10-31-2013, 05:48 PM

Quote:

Originally Posted by andre12031948

Swap a pumpkin with LSVD into a base automatic car. I mean VLSD

if it's from a 370z, just bolt it in, the whole pumpkin.

L33T Z34 · 05-29-2014, 01:20 AM

Don't FE4R teh GE4R! Good tires and suspension r K3y!

Shi'1+e...I ordered my 4 T3rdy's over a year ago...

0! I see 7AT, I don't recommend theez for it...prob 3.90z for 7AT....
LuLz, g00d luck to any1 will'n 2 Mport a JDM rear end to teh USA....prob b cheeeper to build ur MT rear end w/4.36s and clutch LSD, then 2 pay for dat used JDM shi'1te! Just say'N....Mport, u still get an open diff?!....F4IL!

1slow370 · 05-29-2014, 01:46 PM

Quote:

Originally Posted by L33T Z34

Don't FE4R teh GE4R! Good tires and suspension r K3y!

Shi'1+e...I ordered my 4 T3rdy's over a year ago...

0! I see 7AT, I don't recommend theez for it...prob 3.90z for 7AT....
LuLz, g00d luck to any1 will'n 2 Mport a JDM rear end to teh USA....prob b cheeeper to build ur MT rear end w/4.36s and clutch LSD, then 2 pay for dat used JDM shi'1te! Just say'N....Mport, u still get an open diff?!....F4IL!

Please tell me you're kidding around with this, otherwise I vote it for most unreadable post of the year.

Chuck33079 · 05-29-2014, 01:49 PM

Quote:

Originally Posted by 1slow370

Please tell me you're kidding around with this, otherwise I vote it for most unreadable post of the year.

No, he always types like that. I don't even know what that post says. It's a really strange dichotomy- usually good tech info delivered in a style reminiscent of a 12 year old special needs kid on XBox Live.

NickD · 05-29-2014, 01:41 PM

I went with a Quaife diff and 4.08 gear on my 7AT....amaze balls!

Taylortoons · 05-29-2014, 03:54 PM

Thinking about going this route. Just to make sure I'm reading the posts correctly. I have a base 2011 7AT with open diff. The Quaife lsd and 4.08 will drop into the pumpkin and require only shims?

1slow370 · 05-29-2014, 05:18 PM

Quote:

Originally Posted by Taylortoons

Thinking about going this route. Just to make sure I'm reading the posts correctly. I have a base 2011 7AT with open diff. The Quaife lsd and 4.08 will drop into the pumpkin and require only shims?

You will also need the bearings and seals and crushwasher and all the other little pieces for installing the gears.

I wish we could just sticky "Rear-ends are precision gear assemblies and NOTHING inside them is drop in. You will need bearings, seals, lots of shims, crush washers and other stuff, as well as significant labor time at a shop that specializes in this work. You CAN do it yourself but you will probably screw it up and turn everything you just bought into expensive paperweights"

NickD · 05-30-2014, 08:42 AM

Quote:

Originally Posted by 1slow370

You will also need the bearings and seals and crushwasher and all the other little pieces for installing the gears.

I wish we could just sticky "Rear-ends are precision gear assemblies and NOTHING inside them is drop in. You will need bearings, seals, lots of shims, crush washers and other stuff, as well as significant labor time at a shop that specializes in this work. You CAN do it yourself but you will probably screw it up and turn everything you just bought into expensive paperweights"

All of that stuff comes with the gear (or at least it did when I purchased from Z1). The only thing I needed was shims but you wont really know which ones you need (theres like 12 different ones) until the installer measures with a dialer for lashback. Let the shop deal with that headache lol

Taylortoons · 05-30-2014, 01:24 PM

Quote:

Originally Posted by 1slow370

You will also need the bearings and seals and crushwasher and all the other little pieces for installing the gears.

I wish we could just sticky "Rear-ends are precision gear assemblies and NOTHING inside them is drop in. You will need bearings, seals, lots of shims, crush washers and other stuff, as well as significant labor time at a shop that specializes in this work. You CAN do it yourself but you will probably screw it up and turn everything you just bought into expensive paperweights"

Thanks for the advice. Def not doing it myself and didn't want to buy a sport manual pumpkin if it isn't necessary. Sounds like you're saying that if I have the correct install kit (bearings, seals, washers, shims, etc.), the manual quaife lsd and 4.08 would fit the open diff on a base 7AT. Is that right?

10-31-2013, 04:31 PM	#3 (permalink)
critical A True Z Fanatic Join Date: Oct 2012 Location: Washington Posts: 1,252 Drives: 09' 370z 7AT Rep Power: 16	bad permalink :P __________________ Quaife w/ gears \|Stillen Gen 3\|SOLD FI Resonated Test Pipes \|SOLD FI 18'' \| 25row Stillen Race \| Progress 35mm/25mm sways \| Swifts/Koni\|Volk G25's\| Stoptech SS lines\|\|SPL Front/Rear Arms\|

10-31-2013, 04:55 PM	#4 (permalink)
andre12031948 Banned Join Date: Feb 2011 Location: monticello new york 127 Posts: 1,095 Drives: 08 350z black 6m/t Rep Power: 0	What's the story ???? I remember reading something about swapping a manual's trans rear pumpkin if you want to replace a plain one with one that has limited diff. Is that correct? I have a whole M/T pumpkin w LSVD, I mean VLSD and I'm looking at a base automatic 370. Is that the one ^^^ I swap to get VLSD?????? Thanks

05-29-2014, 01:20 AM	#8 (permalink)
L33T Z34 Banned Join Date: Jun 2010 Location: Ahnald, MO Age: 47 Posts: 387 Drives: 09 K51 G C Bw/S 6MT Rep Power: 0	Don't FE4R teh GE4R! Good tires and suspension r K3y! Shi'1+e...I ordered my 4 T3rdy's over a year ago... 0! I see 7AT, I don't recommend theez for it...prob 3.90z for 7AT.... LuLz, g00d luck to any1 will'n 2 Mport a JDM rear end to teh USA....prob b cheeeper to build ur MT rear end w/4.36s and clutch LSD, then 2 pay for dat used JDM shi'1te! Just say'N....Mport, u still get an open diff?!....F4IL! Last edited by L33T Z34; 05-29-2014 at 01:28 AM. Reason: 7AT, more comments

05-29-2014, 01:41 PM	#11 (permalink)
NickD A True Z Fanatic Join Date: Mar 2012 Location: Babylon, NY Posts: 1,321 Drives: 10 Z34 Touring Vert Rep Power: 16	I went with a Quaife diff and 4.08 gear on my 7AT....amaze balls! __________________ 2010 370z Touring Roadster Monterey Blue My Z Photo Library

05-29-2014, 03:54 PM	#12 (permalink)
Taylortoons Base Member Join Date: Aug 2013 Location: Dallas Posts: 98 Drives: 11 370Z AT PW Rep Power: 12	Thinking about going this route. Just to make sure I'm reading the posts correctly. I have a base 2011 7AT with open diff. The Quaife lsd and 4.08 will drop into the pumpkin and require only shims? NickD likes this.

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