93-94 J30 Diff w/ axles Work? whats the Deal? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MrFairlady · 07-05-2008, 04:26 PM

Ok searched and Alot of People are talking some diff stuff about it + I think they are talking about the 95+ J30 Diffs...so whats the bottom Line there on a 94/below Diff???.

Found a 93-94 J30 diff (entire car).
Will this Bolt up to my S13 no problem w/ the axles?
Just Still swap the rear cover Right??

This year (93-94) has 5 bolt correct? STill be the right length etc right??
Or do I just need the Diff and another cars axles.

Somnambulist · 07-05-2008, 04:47 PM

Yes it will bolt up to your car with the correct axles (corresponding J30 5 bolt 93-94 axles).

95+ J30 axles are 3 sets of two just like the S13/S14.

Not sure about the diff cover, but I didn't have to swap the rear cover on my S14. Maybe S13s are different.

MrFairlady · 07-05-2008, 05:24 PM

Werd...was wondering about this whole "Free play" or lack there of,that was the Main concern on the treads I found.

Its a 91 hatch its going in.Didn't know about the whole Driveshaft thing also.
I think the J30 is a 94.Its either 94 or 93.

Thanks

projectRDM · 07-05-2008, 05:51 PM

92-94s use the 5bolt axles, get the axles and it all bolts in. 95-97 use the 6bolt, you don't need the axles.

You will have to swap the cover, it's a 2bolt, and you'll need the front snout bushings and hardware to mount it. Shame too, the earlier J30s had the nice finned rear cover.

Somnambulist · 07-05-2008, 09:50 PM

Quote:

Originally Posted by MrFairlady

Werd...was wondering about this whole "Free play" or lack there of,that was the Main concern on the treads I found.

Its a 91 hatch its going in.Didn't know about the whole Driveshaft thing also.
I think the J30 is a 94.Its either 94 or 93.

Thanks

It will work. The J30 diff is about an inch or so longer than the S13/S14 diff because of the ABS thing (sensor?) on the front of the diff.

I just wedged it together and it worked fine. It has not given me any issues other than being more difficult to bolt the driveshaft to the diff.

Quote:

Originally Posted by projectRDM

92-94s use the 5bolt axles, get the axles and it all bolts in. 95-97 use the 6bolt, you don't need the axles.

You will have to swap the cover, it's a 2bolt, and you'll need the front snout bushings and hardware to mount it. Shame too, the earlier J30s had the nice finned rear cover.

So it's confirmed you need to swap the cover for an S13? My S14 had no issues and bolted right in.

ARS13 · 07-07-2008, 01:51 AM

I've got one in my car right now. I just had to use the 5 bolt axels and my factory rear cover; it works great and was only 150 bucks from a local salvage yard. It was all a very straight foward install also, everything fit perfectly without any problems.

MrFairlady · 07-07-2008, 09:06 AM

Got mine yesterday for $121 w/ the axles.

My Buddy is actually gonna remove the Diff from the J30 and put it in the S13 Diff so I can even keep the Final Drive the same!!

thanks
I was worried that people were saying the axles were diff size on only a few diff diffs or some shit.My Buddy actually confirmed it so I'm gonna go pull my diff today to get started.

projectRDM · 07-07-2008, 09:32 AM

Quote:

Originally Posted by MrFairlady

Got mine yesterday for $121 w/ the axles.

My Buddy is actually gonna remove the Diff from the J30 and put it in the S13 Diff so I can even keep the Final Drive the same!!

thanks
I was worried that people were saying the axles were diff size on only a few diff diffs or some shit.My Buddy actually confirmed it so I'm gonna go pull my diff today to get started.

Final drive is the same, 4.08:1. Only the later 95-97 J30t has the lower 3.92:1. All other models match.

Spring Break '92 · 07-08-2008, 01:50 AM

Quick question, can I use the J30 5 bolt axles as replacements for my JDM R200V diff that also has the 5 bolt axles?

MrFairlady · 07-08-2008, 06:42 AM

they should work fine.

Mine bolted right up and from what I understand they are all essentially R200's.

My main concern was the driveshaft being longer what that will do but most people say it will be fine.My Buddy ran it on his 240 (S13) and it was great.
oh well,...we'll see

cured13 · 07-23-2008, 06:32 PM

So how is going your swap? Is your s13 ABS or nonABS?
What driveshaft did you use?

ZipTiedCoupe · 07-23-2008, 06:39 PM

Use your stock driveshaft. ONLY THING YOUR CONVERTING IS THE REAR COVER AND AXLES. Oh, and of course the diff.

MrFairlady · 07-23-2008, 06:50 PM

Quote:

Originally Posted by ZipTiedCoupe

Use your stock driveshaft. ONLY THING YOUR CONVERTING IS THE REAR COVER AND AXLES. Oh, and of course the diff.

Swap Complete.
everything popped right in.
I have a Non-Abs car of course.....If I had ABS don't they all have a VLSD?I'm still Using my non-Abs Shaft.
of course now all of a sudden I have a Tailshaft seal leak.

Ordered a New one.

What I'm not sure about is:
someone told me the 93-94 J30 had the same Gearing as the S13 Stock open diff?>>
And the 95+ had a Longer ratio....or that the only one that had the longer ratio was the J30T diff??
Whats the deal w/ that.I am noticing I'm either
A: going faster at lower RPM;s
B: Speedo could now be waaaaay off

Accel I'm not so sure I like...granted I porbably need some more power (I/DP/E Stock SR + stock boost)
***Ordered a HKS Wastegate Act, N60 Maf for $19 & .getting a Databoard chip Tune by my friend and going to prob 10-12lbs of Boost (daily Driver).

ZipTiedCoupe · 07-23-2008, 07:28 PM

try edmunds.com or another site with info on the gearing. that might help.

07-05-2008, 04:26 PM	#1
MrFairlady Nissanaholic! Join Date: Mar 2007 Location: Fascination Street,N.C Age: 45 Posts: 1,701 Trader Rating: (31) Rides Gallery: MrFairlady Feedback Score: 31 reviews	93-94 J30 Diff w/ axles Work? whats the Deal? Ok searched and Alot of People are talking some diff stuff about it + I think they are talking about the 95+ J30 Diffs...so whats the bottom Line there on a 94/below Diff???. Found a 93-94 J30 diff (entire car). Will this Bolt up to my S13 no problem w/ the axles? Just Still swap the rear cover Right?? This year (93-94) has 5 bolt correct? STill be the right length etc right?? Or do I just need the Diff and another cars axles. __________________ z-tERty-2

07-05-2008, 05:24 PM	#3
MrFairlady Nissanaholic! Join Date: Mar 2007 Location: Fascination Street,N.C Age: 45 Posts: 1,701 Trader Rating: (31) Rides Gallery: MrFairlady Feedback Score: 31 reviews	Werd...was wondering about this whole "Free play" or lack there of,that was the Main concern on the treads I found. Its a 91 hatch its going in.Didn't know about the whole Driveshaft thing also. I think the J30 is a 94.Its either 94 or 93. Thanks __________________ z-tERty-2

07-05-2008, 05:51 PM	#4
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 50 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	92-94s use the 5bolt axles, get the axles and it all bolts in. 95-97 use the 6bolt, you don't need the axles. You will have to swap the cover, it's a 2bolt, and you'll need the front snout bushings and hardware to mount it. Shame too, the earlier J30s had the nice finned rear cover. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

07-07-2008, 09:06 AM	#7
MrFairlady Nissanaholic! Join Date: Mar 2007 Location: Fascination Street,N.C Age: 45 Posts: 1,701 Trader Rating: (31) Rides Gallery: MrFairlady Feedback Score: 31 reviews	Got mine yesterday for $121 w/ the axles. My Buddy is actually gonna remove the Diff from the J30 and put it in the S13 Diff so I can even keep the Final Drive the same!! thanks I was worried that people were saying the axles were diff size on only a few diff diffs or some shit.My Buddy actually confirmed it so I'm gonna go pull my diff today to get started. __________________ z-tERty-2

07-08-2008, 06:42 AM	#10
MrFairlady Nissanaholic! Join Date: Mar 2007 Location: Fascination Street,N.C Age: 45 Posts: 1,701 Trader Rating: (31) Rides Gallery: MrFairlady Feedback Score: 31 reviews	they should work fine. Mine bolted right up and from what I understand they are all essentially R200's. My main concern was the driveshaft being longer what that will do but most people say it will be fine.My Buddy ran it on his 240 (S13) and it was great. oh well,...we'll see __________________ z-tERty-2

07-05-2008, 04:47 PM	#2
Somnambulist Zilvia Junkie Join Date: Jan 2008 Location: Cincinnati, Ohio Posts: 596 Trader Rating: (5) Feedback Score: 5 reviews	Yes it will bolt up to your car with the correct axles (corresponding J30 5 bolt 93-94 axles). 95+ J30 axles are 3 sets of two just like the S13/S14. Not sure about the diff cover, but I didn't have to swap the rear cover on my S14. Maybe S13s are different.

07-07-2008, 01:51 AM	#6
ARS13 Join Date: May 2008 Location: Arkansas Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	I've got one in my car right now. I just had to use the 5 bolt axels and my factory rear cover; it works great and was only 150 bucks from a local salvage yard. It was all a very straight foward install also, everything fit perfectly without any problems.

07-08-2008, 01:50 AM	#9
Spring Break '92 Zilvia Member Join Date: Dec 2007 Location: unconcious on Daytona Beach Posts: 180 Trader Rating: (1) Feedback Score: 1 reviews	Quick question, can I use the J30 5 bolt axles as replacements for my JDM R200V diff that also has the 5 bolt axles?

07-23-2008, 06:32 PM	#11
cured13 Zilvia Addict Join Date: Apr 2008 Location: Almostthere Posts: 719 Trader Rating: (11) Feedback Score: 11 reviews	keep us posted So how is going your swap? Is your s13 ABS or nonABS? What driveshaft did you use?

07-23-2008, 06:39 PM	#12
ZipTiedCoupe BANNED Join Date: Jul 2008 Location: Amerika Posts: 309 Trader Rating: (0) Feedback Score: 0 reviews	Use your stock driveshaft. ONLY THING YOUR CONVERTING IS THE REAR COVER AND AXLES. Oh, and of course the diff.

07-23-2008, 07:28 PM	#14
ZipTiedCoupe BANNED Join Date: Jul 2008 Location: Amerika Posts: 309 Trader Rating: (0) Feedback Score: 0 reviews	try edmunds.com or another site with info on the gearing. that might help.