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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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11-06-2011, 07:22 PM | #1 |
Zilvia Junkie
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Need Help Identifying this VLSD 5 bolt diff and axles i picked up.
so heres the deal, i found a guy selling this diff. it has an s13 vlsd cover on the back, what appears to be an s13 housing (?) but it has 5 bolt output shafts. Now, at first i thought it was a j30 housing when i bought it, but it would have the abs sensor on the input shaft, and then i thought it was a 300zx n/a diff, but it would have larger front mount holes wouldnt it? is this just some frankenstein diff? could it be a 180sx vlsd diff (those had a different ring gear didnt they?)
ALSO, it has a 49/12 4.08 vlsd in it. so it has the same vlsd as an s13, 300zx n/a, or r33... i am just very confused as to what is going on with this thing, i pulled the cover, and inside looks perfect and is adjusted/shimmed perfect, so it doesnt strike me as some hacked together diff. all the measurements match an s13 non-abs open diff on the outside, so it would bolt up to my non abs s13. pics of diff Here are the axles, are they just 87-89 300zx axles? they are a little longer than s13 axles. they were free. thanks for any help...ive been searching everywhere i could on the net, and it seems every picture i find that is supposedly one type of diff, I find another that looks different. I know with j30 axles i could bolt up what i have RIGHT NOW, but i would really like to know exactly what i have before bolting it up. |
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11-06-2011, 08:15 PM | #2 |
Zilvia Junkie
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another question, can i swap non vlsd s13 6 bolt output shafts from one of my spare open diffs into a vlsd? are the lengths, spline counts, and overall diameter the same? because that would make this very easy...i cannot find a definite answer on this either...
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11-06-2011, 11:41 PM | #3 |
Zilvia Junkie
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I wanna say that might be a 180sx diff. I know the z32 N/A and zenki J30 both had 5 bolt flanges but ABS was standard on both and there doesn't appear to be any ABS sensors on it. Those axles aren't from a z31, the flanges are 4 bolt on a z31. Might be z32 but either way they're worthless to you because you can't run the long axles (I know from exp don't waste your time). As for your last question, yes the open diff s13 flanges will fit in your vlsd, BUUUTTTT realize that you will now have another open diff! The vlsd mechanism will not work with the open flanges because the vlsd flanges are longer with extra splines on the ends. Either buy zenki J30 axles (shorter 5 bolt), or buy 6 bolt vlsd output flanges off a vlsd 240sx or kouki J30. Also google this there's literally a million write-ups on it!
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11-07-2011, 01:07 AM | #4 | |
Nissanaholic!
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Quote:
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11-07-2011, 12:56 AM | #5 |
Nissanaholic!
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If the axles are z32, the shorth one will work on the passanger side on a S13, youll just have to find a driver side axle. I should know i had to figure it out my self
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11-07-2011, 09:25 AM | #8 | |
Guild of Skullduggerous Intent
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Quote:
also all J30 ones I've seen have the s14 type of mounting pattern (bushings required) if I had to guess I'd say 180 vlsd |
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11-07-2011, 09:45 AM | #9 | |
Nissanaholic!
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Upon further inspection, this is my answer as well. Has 4 bolt mounting in the back (like s13s) and solid mounting requiring no bushings (also like s13's) |
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11-07-2011, 10:33 AM | #11 |
Zilvia Junkie
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The lack of front bushings and abs rings is what told me it wasn't a 300zx rear...
Well this wasn't a bad pickup then! Also...I cross referenced the outputs from a r200 and r200v equipped usdm s13 diff and nissans part numbers are the same... |
11-07-2011, 01:00 PM | #12 |
Zilvia Junkie
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Still don't run those open diff flanges! LSD will not engage with them. Don't do any axle mix and matching either, like putting the shorter one you have in the 240 long side. Buy the right shit! It'll make it easier to get replacement parts down the road because you'll know what you have for sure. It is a good deal though, it'll swap right in with no backplate swapping or driveshaft snugness.
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11-07-2011, 04:25 PM | #14 |
Zilvia FREAK!
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The 6-bolt output shafts from a J30 diff will work just fine, that's what I swapped into my Z32 VLSD. Much easier than swapping axles.
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11-07-2011, 09:55 PM | #15 |
Zilvia Junkie
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welp...i guess we'll just see what i can find axles/output flanges wise. Id prefer 6 bolt flanges because s13 axles are a lot easier to come by than j30s
anyone know if pep boys/napa/autozone/advanced auto sell j30 axles? cuz ill just buy some new/remanned ones for the price those places usually get axles for (even though i know they are junk axles). just so i can get this thing installed for winter, then in spring switch out the flanges and go back to s13 axles... my current diff roars and clunks and shakes real bad, so i need to get this thing installed asap, especially before winter hits...(i am also replacing all 4 LCA ball joints on this turd40 of mine) |
11-08-2011, 04:49 PM | #18 | |
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Quote:
if you werent planning to use these vlsd then might as well sell it and go look for j30 6 bolt vlsd. oh if you try to put the 6 bolt output shaft from open diff its not gonna work. they are shorter compare to an output shaft that came from a vlsd. next time you buy a part research it, it saves you time and money. |
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11-08-2011, 06:25 PM | #19 | |
Zilvia Junkie
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I am planning on using this lsd, so i dont know what you are talking about. I know i cannot use open diff outputs in my vlsd, which is why i am trying to obtain the correct outputs. I did research it, but as demonstrated by this thread alone, there is so much miss-information out there, that it hard to tell exactly what you are getting until it is in your hands. I knew what i was getting would work and there were multiple ways to make it work. this thread was meant simply to clarify exactly what i have so that i know, once installed, how to maintain it and know i did it correctly. Is it so wrong to gather information and experience from other people on this forum? |
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05-21-2012, 12:48 PM | #21 |
Zilvia Addict
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Sorry to bring this up again, but I have this same diff in my car and I believe that I have j30 axles and the passenger side is making noise. I believe it is because it is too long based on what I have read here and the way the inside steel dust shield is torn up as well as the slight difficulty I have when installing it.
I am looking to replace the passenger side with the driver Z32 axle but all I can find are N/A axles. Is this the right axle? Is there even a difference between them? Thanks
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