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Aftermarket helical LSD options for st162 sx

Discussion in 'Drivetrain' started by Hazzmac92, Apr 24, 2014.

  1. Hazzmac92

    Hazzmac92 Well-Known Member

    Hey guys
    I'm wondering what options I have in regards to a helical LSD for my gen 1 3sge.

    What will fit ? What other models are interchangeable as all I can find are clutch type lsd's
     
  2. Stig

    Stig ST162 Guru Donated!

    Very hard to find parts for these, I think you'll find that TRD, Cusco etc have all been discontinued

    Another issue with these diffs is the speedo ring gear doesnt fit or comes loose.

    Also the stock shafts don't always fit

    BE CAREFUL
     
  3. racerb

    racerb Well-Known Member

  4. Stig

    Stig ST162 Guru Donated!

    Very interesting - and cheap
    Got any info on how it works or diagrams, site is pretty vague?

    Had I seen this earlier I wouldn't be spending billions on converting a MR2T box to fwd
     
  5. 4thgenceli

    4thgenceli Test Dummy

    It cost me less than $50 to convert mine....
     
  6. racerb

    racerb Well-Known Member

    Check the installation info on the web-site, it shows a more detailed example of how it fits and works within the transaxle. The one in my GTS 5-speed was installed at the same time I was replacing syncros in my tranny.

    racerb
     
  7. Stig

    Stig ST162 Guru Donated!

    Not when the diff is shattered and the syncros are history?

    Best done when overhauling your box - it ain't cheap, even when you do it yourself.

    My conversion is on hold atm, everything is ready but I aquired a RC box with 3.9 diff & short gears so will be mixing them to make one with the longest gearing possible. 1,2,3 is too short in the 4.1 box for my liking.
    I read somewhere that Toyota applied "friction material??" to the gear cones so might have a go at sandblasting the cones to get some extra syncro friction.
     
    Last edited: Apr 27, 2014
  8. Hazzmac92

    Hazzmac92 Well-Known Member

    Trd and cusco aren't helical LSD, don't want one with clutch discs
     
  9. Stig

    Stig ST162 Guru Donated!

    I think you'll have to abandon that search, there just aren't that many a/m parts for the gen4

    Search under Torsen or Helical diff, I don't see any for the gen4/5/6 which is the same as Corolla,
    I think my next car is a MR2T, there are tons of parts for those
     
  10. Hazzmac92

    Hazzmac92 Well-Known Member

    Quaife do one for a sw20 mr2 with s54 but doubt that will fit my box
     
  11. Stig

    Stig ST162 Guru Donated!

    You're in luck, let's hope it's not discontinued.
    All "S" boxes use the same diff and internals but be careful about shafts to fit
     
  12. Hazzmac92

    Hazzmac92 Well-Known Member

    So the shafts are different or ?
     
  13. Hazzmac92

    Hazzmac92 Well-Known Member

  14. Stig

    Stig ST162 Guru Donated!

    Yes, that will fit, looks nice but I'm too scared to look for a price.
    The problem is that many of these were designed for Corollas and our shafts are different on one side (see the Quaife tech drawing states Corolla AE?) so it's important to find out if the shafts fit.

    I know there was this problem with the TRD and Kaaz lsd's
     
  15. Hazzmac92

    Hazzmac92 Well-Known Member

    So say I order it
    What do I do regarding shafts if it's the Same story ? Corolla shaft cv one side and celica on the other ?

    What side is it also ?
     
  16. Hazzmac92

    Hazzmac92 Well-Known Member

    also i emailed qaiufe regarding how many teeth they're splines have, how many do the st162 3sge gearboxes have ?
     
  17. racerb

    racerb Well-Known Member

    This is why I stuck with the Phantom-Grip LSD, used my stock tranny and half shafts. The tranny in my car is actually a JDM unit, but other than slight gearing changes is identical to the USDM 5-speed in our 4th gen cars.

    racerb :cool:
     
  18. Hazzmac92

    Hazzmac92 Well-Known Member

    Alright how many teeth do st162 shafts have ?
     
  19. racerb

    racerb Well-Known Member

    Last edited: May 6, 2014
  20. Hazzmac92

    Hazzmac92 Well-Known Member

    mr2 no turbo box is 23 teeth
    mr2 turbo is 24 teeth

    is an lsd really worth it when im having no issue with wheel spin on corners ?
     

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