240sx lsd

[dcdrifter]

I have a 96 240sx w/ out an lsd. I have an r200 lsd out of a non turbo 300zx and a whole pumpkin from a turbo 300zx. My question is which one can i use in my 240 and do I need a new transfer case and what is my axle situation? I know this forum is for rb stuff but you guys seem to know more than the guys on the 240sx forum.

[Ramius83]

You will want to use the 90-96 300zx Non-Turbo LSD.

You will have to remove the input shafts on both sides of the differential on the 300zx LSD and switch them with you stock 240sx non-LSD input shafts. Other than that, you are done.

The 300zx TT LSD has a 3.7xx or something gear ratio. That is not good for our cars, even with an RB engine in the car. And your speedo will be even more off.....

[Ramius83]

Also, do a search on this first next time. This has been discussed more times than anyone can count. And there is a TON of info out there regarding this.....

[technorb26]

The 300zx TT LSD has a 3.7xx or something gear ratio. That is not good for our cars, even with an RB engine in the car. And your speedo will be even more off.....

Why is that no good? I thought it means more top end? The speedo can be calibrated though...

[dcdrifter]

are the input shafts the same on twin turbo 300zx as the non? If so, can i use the 300zx twin turbo axles?

[Carl H]

You will have to remove the input shafts on both sides of the differential on the 300zx LSD and switch them with you stock 240sx non-LSD input shafts. Other than that, you are done.

WRONG!you need to use the z32's output shafts as the vlsd output shafts are vastly diffrent from open diff output shafts.you may need to use the z32 axles but the output flanges are diffrent regardless.

[cvc9216]

You can't use non-lsd output shafts w/ a lsd diff. You need to use the NA Z32 diff with either:

1) 240sx VLSD 6-bolt output shafts and stock axles2) Z32 output shafts with 90-94 5-bolt J30 axles

Z32 axles are too long. And the TT Z32 pumpkin is different and won't work in a 240.

[BoostFab]

are the input shafts the same on twin turbo 300zx as the non? If so, can i use the 300zx twin turbo axles?

you can eliminate all the nonesense....you can use a set of 92-95 J30 axles to use with the 300z NA lsd. direct bolt on the 240sx. and no need to worry about output shaft bullsh-t

another option other than the 300z NA lsd is the j30 lsd. if you can get 96+ lsd from the j30 you can use your stock 240sx axles. i would just stick with the 300z NA sd since you already have it

[Carl H]

You can't use non-lsd output shafts w/ a lsd diff. You need to use the NA Z32 diff with either:

1) 240sx VLSD 6-bolt output shafts and stock axles2) Z32 output shafts with 90-94 5-bolt J30 axles

Z32 axles are too long. And the TT Z32 pumpkin is different and won't work in a 240.

yeah, i couldnt remember if the z32 axels were too long or not but im positive about the output flange bit.

[dcdrifter]

so my best way to go about it is to get j30 axles and j30 output flanges. Ok which transfer case should i use. Could I take the lsd out of the tt pumpkin and use that? Or should i get a j30 or z32 case? Last question i promise.Thanks

[lyon23]

so my best way to go about it is to get j30 axles and j30 output flanges. Ok which transfer case should i use. Could I take the lsd out of the tt pumpkin and use that? Or should i get a j30 or z32 case? Last question i promise.Thanks

no, since you have the na 300zx lsd just buy some j30 axles and you wont have to change the output shafts on the lsd... the tt lsd is bigger and the output shafts are diferrent..

[dcdrifter]

i got it.....my z32 lsd isnt in the case....it is just the internals

[Wulfgang]

Stop calling it a transfer case. Those are used to connect the front and rear drives on 4WD.

Your cheapest option is still to buy a complete J30 LSD from a 95-96 model. It will bolt right into the S14, no mods or new output shafts needed, and will only be tall by about 3%. I picked one up for about $250 shipped.

Complete details for using the J30, the Z32 N/A, and other models can be found at http://www.ka24development.com/vlsd.html.

[driftjunke]

You oughtta use the diff that comes in the stock RB20 Skylines, they are a 4.36 rear end, your car will feel like a different car over that of the 4.09 Boost spools so much faster, and the car feels so much quicker, the power band becomes alive. I run one in my HB, I tried the 4.09 and 3.86 but the 4.36 is awesome.

If you would like one, pm me.

J.D.

[dcdrifter]

you know where i can get one?

[Joe]

any parts importer should be able to get it

venusmckinneyetc

[cvc9216]

I have a 95-96 J30 diff if you want one of those, I'm in MD also

[dcdrifter]

email me!!

[email protected]

[Ramius83]

you can eliminate all the nonesense....you can use a set of 92-95 J30 axles to use with the 300z NA lsd. direct bolt on the 240sx. and no need to worry about output shaft bullsh-t

another option other than the 300z NA lsd is the j30 lsd. if you can get 96+ lsd from the j30 you can use your stock 240sx axles. i would just stick with the 300z NA sd since you already have it

In this article that I found on the internet, http://importnut.net/lsdswap.htm , it says that the 300zx half-shafts are 1-2 inches longer than that of the 240sx. Now, are the 92-95 J30 axles the same length as the 300zx half-shafts, or are they the same length as the 240sx half-shafts? Thanks for the help on this.....

[BoostFab]

In this article that I found on the internet, http://importnut.net/lsdswap.htm , it says that the 300zx half-shafts are 1-2 inches longer than that of the 240sx. Now, are the 92-95 J30 axles the same length as the 300zx half-shafts, or are they the same length as the 240sx half-shafts? Thanks for the help on this.....

92-95 J30 axles are the same lenght as the 240sx, will bolt on to the S13 and S14. some how-to's are missing out some information....

people are making this so complicated than what it is. here are your options for OEM VLSD swaps, do not require you to change any output shaft, just swap out the back cover with your 240's and bolt it on the car:

1) JDM VLSD -- direct bolt in.2) 90+ 300zx NA VLSD + 92-95 J30 axles.3) 92-95 J30 VLSD + 92-94 J30 axles4) 96+ J30 VLSD, whole pumkim direct bolt in.5) R32 VLSD -- R32 axles or 92-95 J30 axles.

[mkory]

Does anybody posting here have ANY lsd for sale, I saw quite a few different ones mentioned, but are any left?

[BoostFab]

Does anybody posting here have ANY lsd for sale, I saw quite a few different ones mentioned, but are any left?

i might be able to get you one, $250 + shipping for a NA 300z. email me if you're interested.

[Nameless EJ6]

Why is that no good? I thought it means more top end? The speedo can be calibrated though...

Research gear ratios. In no way, shape or form do you get some sort of power gain from a different differential. Your power is already there.. in the form of an engine.

http://www.howstuffworks.com

General rule of thumb, don't do modifications if you don't know what the outcome is going to be.

[JonPowell]

I love "how stuff works"...they have alot of nice articles there, actually showed me ina way I could understand how a wankel engine works....

[mkory]

For the 300zx N/A differential, I would end up putting the internals into my pumpkin, but do the 240sx's open differential output shafts work with the 300zx's internals? What kind of lsd is in the 300zx? VLSD?

[Nameless EJ6]

lol.. you have the LSD/internals in your posession. Have you put your eyes on it yet?

Research viscus and helical differentials after you research gear ratios.

[mkory]

No, I definately have an open differential. I was just going to take the internals out of whatever LSD that I get so the extra .5 inch doesn't from the ABS sensor doesn't wear out a certain seal in the transmission. I've heard that if you get the transmission to soak up the .5", it'll wear out some seal inside about every 3-5000 miles, so I wanted to keep using the same pumpkin.

[BoostFab]

No, I definately have an open differential. I was just going to take the internals out of whatever LSD that I get so the extra .5 inch doesn't from the ABS sensor doesn't wear out a certain seal in the transmission. I've heard that if you get the transmission to soak up the .5", it'll wear out some seal inside about every 3-5000 miles, so I wanted to keep using the same pumpkin.

usually your transmission allow about ~1" play at the yoke. i haven't heard any issue from people i know that use the stock driveshaft.

[NightKids2]

Your cheapest option is still to buy a complete J30 LSD from a 95-96 model. It will bolt right into the S14, no mods or new output shafts needed, and will only be tall by about 3%. I picked one up for about $250 shipped.

Where did you get it from? Im in the market for a J30 LSD also.