Will this diff fit? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Chrisw · 06-25-2011, 06:38 PM

So I thought S13 and S14 diff's were interchangable...

I ordered an S13 VLSD from a guy for my S14 and when looking at it it looks different.

The one on my car has two bolts on the back, and the new one I got has four... WTF?

*brndck* · 06-25-2011, 06:42 PM

the one with 4 bolts is from an s13.
all you need to do is take the rear cover from your s14 diff and bolt it on in place of the 4 bolt cover. (they are interchangeable)
voila.

future · 06-25-2011, 06:50 PM

Swap the back housing and make sure both diffs are 6 bolt outputs orelse you need different drive shafts

*Jonnie Fraz* · 06-25-2011, 07:12 PM

You will also need shorter bolts on the two attachment points by the pinion since there are no isolators.

curbhuggerrps13 · 06-25-2011, 07:15 PM

Quote:

Originally Posted by Jonnie Fraz

You will also need shorter bolts on the two attachment points by the pinion since there are no isolators.

when using s13 diff it has no bushing so use s13 bolts for where it bolts upwards. for s14 use s14 bolts if using j30 or s14 z32 that have the bushings

Chrisw · 06-25-2011, 07:40 PM

Quote:

Originally Posted by curbhuggerrps13

when using s13 diff it has no bushing so use s13 bolts for where it bolts upwards. for s14 use s14 bolts if using j30 or s14 z32 that have the bushings

Huh? So use the bolts that are bolting the old one up? Those are the only ones I have...

Quote:

Originally Posted by Jonnie Fraz

You will also need shorter bolts on the two attachment points by the pinion since there are no isolators.

Where's the pinion? :S

As for the 6-bolts, yup. All is good. Thanks guys!

AutechKouki · 06-25-2011, 09:47 PM

Quote:

Originally Posted by Chrisw

Huh? So use the bolts that are bolting the old one up? Those are the only ones I have...

Where's the pinion? :S

As for the 6-bolts, yup. All is good. Thanks guys!

By where the driveshaft bolts up, two of them, one on each side. Get some s13 bolts from a junkyard, just do it right the first time.

BTW that s13 cover is higher capacity than the open diff ones. Sell it on here haha.

J~TIN · 06-28-2011, 06:08 PM

Swap the back casing and drop it in.

slidin280Z · 06-29-2011, 10:34 PM

So would it work vise versa if I got a s14 LSD and put it in my s13?

AutechKouki · 06-29-2011, 10:41 PM

Quote:

Originally Posted by slidin280Z

So would it work vise versa if I got a s14 LSD and put it in my s13?

Yes, and j30 and z32 and r32/33/34 with all perspective axles of course.

06-25-2011, 06:38 PM	#1
Chrisw Zilvia Member Join Date: Jan 2008 Location: Edmonton Age: 37 Posts: 264 Trader Rating: (2) Feedback Score: 2 reviews	Will this diff fit? So I thought S13 and S14 diff's were interchangable... I ordered an S13 VLSD from a guy for my S14 and when looking at it it looks different. The one on my car has two bolts on the back, and the new one I got has four... WTF?

06-25-2011, 07:12 PM	#4
Jonnie Fraz Premium Member Join Date: Jan 2005 Location: Cali Age: 52 Posts: 1,371 Trader Rating: (29) Rides Gallery: Jonnie Fraz Feedback Score: 29 reviews	You will also need shorter bolts on the two attachment points by the pinion since there are no isolators. __________________ Stealth-Custom-Fab.com

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06-25-2011, 06:50 PM	#3
future Post Whore! Join Date: Dec 2010 Location: SoCal 909 Age: 28 Posts: 4,737 Trader Rating: (42) Feedback Score: 42 reviews	Swap the back housing and make sure both diffs are 6 bolt outputs orelse you need different drive shafts

06-28-2011, 06:08 PM	#8
J~TIN Join Date: Oct 2010 Location: Cincinnati Age: 28 Posts: 21 Trader Rating: (0) Feedback Score: 0 reviews	Swap the back casing and drop it in.

06-29-2011, 10:34 PM	#9
slidin280Z Join Date: Jan 2010 Location: Yuma AZ Age: 31 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	So would it work vise versa if I got a s14 LSD and put it in my s13?