R200 open vs CLSD

  • 300zxt
    300zxt
    Senior Member
    • 1712

    R200 open vs CLSD

    Can anyone tell me what the visual differences are to the R200 open diff vs CLSD? I'm not 100% confident the diff on my Aus-spec 1988 Z31 ever was a CLSD from the factory. We've just done the test on the hoist and only one wheel turns at a time so if it IS a CLSD then it's toast. But before we rip it open I want to make sure it's serviceable before I find out it's an open diff and have nothing to replace it with.

    I know some have the finned diff cover but is there any other identifying factors to determine if the R200 in my car was a CLSD or open?

    Cheers
    http://youtube.com/c/zcartube
  • kaur
    kaur
    Senior Member
    • 310

    #2
    It is most likely open. I think only JDM and USDM cars got LSDs. Australian cars are also covered in the same FSMs as Euro cars and there are no LSDs mentioned anywhere. They had diff coolers but all had open diffs. If you want one, get one of those aftermarket S13 LSD units meant for originally open diffs.

    Kaaz S13 units are numbered as SAN2655 and SBN2655 for 2 way and 1.5 way.
    Last edited by kaur; 03-23-2017, 03:19 AM.
  • 300zxt
    300zxt
    Senior Member
    • 1712

    #3
    Cheers mate, good information. I had suspected we got stiffed on this. I only bothered noticing because my inside rear RHS tyre is more worn than the other, not because of any mechanical issues.
    http://youtube.com/c/zcartube
  • 300zxt
    300zxt
    Senior Member
    • 1712

    #4
    The price for the Kaaz 1.5 way landed is $2,000aud! Damn. Lol

    Surely there's an aftermarket option like cusco that'll go with the open diff housing and half shafts etc?
    Last edited by 300zxt; 03-23-2017, 06:27 AM.
    http://youtube.com/c/zcartube

    Comment


    • shromy
      shromy commented
      yes, they have options to fit as well
  • kaur
    kaur
    Senior Member
    • 310

    #5
    Quaife, Cusco, OS Giken, and maybe someone else. As far as you can read online, any insert that fits an originally open S13 R200 should also fit an open Z31 R200. Verify that before you order anything, though.
  • 260DET
    260DET
    Senior Member
    • 537

    #6
    You should be able to pick up a good used clutch type OE complete long nose diff for around 1,200.00 pacific pesos Try AU Ebay or http://www.viczcar.com/forum/forum/2…ools-for-sale/
  • 300zxt
    300zxt
    Senior Member
    • 1712

    #7
    Yeah I see a few Skyline parts kicking around, the information around fitment and compatibility is very obscure though.

    This is only 30 min from me; http://www.viczcar.com/forum/topic/1…clsd-4375-qld/

    Do not want that ratio though and I also don't want to be the first to do a Skyline diff conversion lol
    http://youtube.com/c/zcartube
  • 260DET
    260DET
    Senior Member
    • 537

    #8
    I'll be going through a similar mix and match soon, 260Z open diff to get the ratio required, the '87 turbo Z31 axles slip straight in, not sure if a short nose helical LSD centre will fit but that's the idea.
  • kaur
    kaur
    Senior Member
    • 310

    #9
    Can't you just combine a suitable final drive gear and differential to get the ratio you want?
  • 260DET
    260DET
    Senior Member
    • 537

    #10
    Don't see that many crownwheel and pinion sets for sale Kaur, most people want to sell the complete diff.
  • midian
    midian
    Senior Member
    • 421

    #11
    Just few cents: all jdm z31 diffs,excluding vlsd are "bald".
    Z31 JDM my way_google translated
  • ajaxism
    ajaxism
    Senior Member
    • 365

    #12
    A few people have been saying they've found LSDs in their 300ZX Z31 (AUDM). They came with certain turbo models.

    http://ozdat.com/forum/viewtopic.php?f=29&t=8883