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Thread: JZA80 Differential Info!

  1. #26
    Blood for Blood RogueSupra's Avatar
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    ^ did you try google?

    http://www.mkiv.de/artikel/allgemein/33.htm

    ^ found that for you real fast.
    MKIV TT



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  3. #27
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    1996-7 JDM SZ-R 5 Speed (W58) also had a rare factory LSD. It came on mine. I don't know all the info on it. I have it in my garage but I will update this thread when I get back home.
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  4. #28
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    huh

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  6. #29
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    Quote Originally Posted by RogueSupra View Post
    ^ did you try google?

    http://www.mkiv.de/artikel/allgemein/33.htm

    ^ found that for you real fast.
    OR this

    Dat ass

  7. #30
    Exiled Supra Owner FLZ_Boy's Avatar
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    Just a minor correction for the USDM 1998 NA, the torsen lsd was standard in 1998.

    http://www.mkiv.com/specifications/9...ure/index.html
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  8. #31
    Exiled Supra Owner FLZ_Boy's Avatar
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    Quote Originally Posted by Philly#1 Lex View Post
    1996-7 JDM SZ-R 5 Speed (W58) also had a rare factory LSD. It came on mine. I don't know all the info on it. I have it in my garage but I will update this thread when I get back home.
    I don't think model year 1996 - 1997 SZ-R's came with a 5-speed, I think the 6-speed was standard on all SZ-R's (except the earlier models 93 - 95).
    Last edited by FLZ_Boy; 11-25-2010 at 03:21 PM.

  9. #32
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    from feb 97 on the v161 was in all jdm sz-r's along with the torsen but as for the usdm dunno

  10. #33
    Exiled Supra Owner FLZ_Boy's Avatar
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    Quote Originally Posted by mikethecripple View Post
    from feb 97 on the v161 was in all jdm sz-r's along with the torsen but as for the usdm dunno
    I think production began sometime in 96, so therefore it's 97+ model year. For the USDM, we were cheated and left with the 5-Speed.

  11. #34
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    Quote Originally Posted by FLZ_Boy View Post
    I think production began sometime in 96, so therefore it's 97+ model year. For the USDM, we were cheated and left with the 5-Speed.
    man that sucks we got it pretty sweet over here in nz NO emission laws just noise and you can import and drive pretty much anything (so much for our 'clean and green' impression that we try to give off lol)

  12. #35
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    Quote Originally Posted by FLZ_Boy View Post
    I don't think model year 1996 - 1997 SZ-R's came with a 5-speed, I think the 6-speed was standard on all SZ-R's (except the earlier models 93 - 95).
    ? Um yes they do... I live in Japan....

    Quote Originally Posted by mikethecripple View Post
    from feb 97 on the v161 was in all jdm sz-r's along with the torsen but as for the usdm dunno
    Not 100% positive on production month but it happened somewhere in there when mid year.

    The thing I have learned is that the JDM supra's were very personalized depending on owner. Meaning All options were on the table when you brought it from the dealer. The biggests thing I see is the brakes, transmission & lsd's.

  13. #36
    Exiled Supra Owner FLZ_Boy's Avatar
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    Quote Originally Posted by Philly#1 Lex View Post
    ? Um yes they do... I live in Japan....
    What is the model number of your SZR:

    E-JZA80-ALMSF (5MT)

    E-JZA80-ALFSF (6MT)

    I have the production date of the 6MT at April of 96 (which is probably the 97 model year).

    I'm curious how accurate my production number are.

  14. #37
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    Quote Originally Posted by FLZ_Boy View Post
    What is the model number of your SZR:

    E-JZA80-ALMSF (5MT)

    E-JZA80-ALFSF (6MT)

    I have the production date of the 6MT at April of 96 (which is probably the 97 model year).

    I'm curious how accurate my production number are.
    Sorry I wont be able to check until next year.... Im not in Japan right now.

  15. #38

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    Mines E-JZA80-ALFSF (6MT)
    and its a 96, and the only SZ-R's with 6psd I've seen are from 96+, before 96 I've only seen 5spd
    Last edited by D17; 11-27-2010 at 05:14 AM.

  16. #39
    SupraForums Member Martin F's Avatar
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    I believe the SZ-R was only available from 96 onwards, prior to that the model was just an SZ.

  17. #40
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    Quote Originally Posted by Martin F View Post
    I believe the SZ-R was only available from 96 onwards, prior to that the model was just an SZ.
    Negative... I am sure it was available in Japan prior to 96. Im pretty sure you are refering o the RZ and The RZ-S

  18. #41
    SupraForums Member Martin F's Avatar
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    Should have checked my own site first !

    http://www.mkivsupraownersclub.com/R...el%20Table.htm

    You're right, looks like they were available from Mid-94.

  19. #42
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    Quote Originally Posted by Martin F View Post
    Should have checked my own site first !

    http://www.mkivsupraownersclub.com/R...el%20Table.htm

    You're right, looks like they were available from Mid-94.

    Philly For the WIN!!!

    J/K

  20. #43
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    what oil is the best for torsen lsd?

  21. #44
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    First off ... depending on which chassis you are talking about, the 'meaning' of the codes changed. To keep things simple for sake of explaining, let's compare the diffs in the MK3 (G Series) and the MK4 (A or B series) as they have been called ...

    Old school example: G285 ... The G described the housing (size of ring gear and solid or ind axle), the next 2 digits told you the gear ratio: i.e. 28x = 4.30 gear ... and the last digits told you whether you had open diff or limited slip ... if the last digit was a 2 or a 4, it was open diff, if it was a 3 or a 5 it was LSD, and there is a universal chart that list all the combinations ...

    The newer axle codes aren't universal between chassis ... i.e. an A01A in a Supra is going to be different from an A01A from a GS300 (except for one thing) ... so lets explain the newer codes ...

    Let's look at a USDM MK4 Supra TT Auto:
    A01D 'should' be the axle code

    The A means it is the standard diff for the chassis (B would mean it is the optional diff if available)
    01 is the gear ratio, but the difference is the 01 is chassis and market specific now.

    The last letter D means it is a full 2 way torsen LSD
    C = supposed to mean 1.5 way torsen LSD (I have yet to see one)
    B = supposedly is only a 1way torsen LSD (every JDM LSD diff I have seen has this code)
    A = Open Diff


    Now take the 94 USDM MK4 Supra TT with the optional 6spd V160 and it's axle code 'should' be...
    B07D

    B = The optional diff for that chassis
    07 = gear ratio 3.133 (specific to the USDM Supra)
    D = 2 way torsen LSD

    In other words the B diff now doesn't always mean it's a 220mm ring gear .... just go look up the current trucks from Toyota and you'll see what I mean!

    I've also personally seen a B03B diff from a JDM Chaser, and it had the housing of a 200mm ring gear ....

    It just requires a 'different' way to think about what the codes represent, and what makes it more complicated is, you can't just go by the axle code anymore ... you have to at least know what market and chassis it came from, I.E. JDM JZX100 B03B for example ...

    In the USDM Supras ... the ratios are supposed to be:

    01 = 3.769 (TT Auto)
    02 = 4.272 (N/A Auto, N/A 5MT)
    07 = 3.133 (TT 6MT)

    This information wasn't easy for me to compile ... and I don't guarantee its accuracy, however I have more hours talking on the phone with importers, service depts, friends, jdm import shops, and last and not least toyotareference.com which shows what is 'supposed' to be available for the chassis than I care to admit to bring this information to the community.

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  22. #45
    Blood for Blood RogueSupra's Avatar
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    So I am correct I looked it up a little deeper than you did.

    Quote Originally Posted by RogueSupra View Post
    Rear end is an “A01D” Torsen Limited Slip Differential or LSD:
    • A- 8inch crown, 200mm ring gear size
    • 01- 4.083:1 ratio
    • D- Torsen LSD 4 pinion

    Differential ratio: 3.769


    Ok so how does that all look? Correct....

  23. #46
    Super Moderator Wreckless's Avatar
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    Quote Originally Posted by FLZ_Boy View Post
    Just a minor correction for the USDM 1998 NA, the torsen lsd was standard in 1998.

    http://www.mkiv.com/specifications/9...ure/index.html
    You know, I'd love to believe that but the only local '98 NA here in NM has an open diff for sure (but is a salvage title car, so who knows) and that same brochure lists the sport roof as being optional on both turbo and NA models, which of course wasn't the case with the TT. Do you have any other sources/confirmation on LSD's being in every '98?



    Quote Originally Posted by KingCobra View Post
    <snip>
    The newer axle codes aren't universal between chassis ...

    <snip>
    This information wasn't easy for me to compile ... and I don't guarantee its accuracy, however I have more hours talking on the phone with importers, service depts, friends, jdm import shops, and last and not least toyotareference.com which shows what is 'supposed' to be available for the chassis than I care to admit to bring this information to the community.

    Thanks for the explanation! since the older Toyota diff codes did cross-reference between platforms, I'd been assuming all this time that the same was true for the current ones.

    This was further complicated by accidental coincidences, such as my own beater Tundra's A01A diff code matching the open 4.083:1 200mm ring gear description perfectly, albeit in a live axle configuration. That led me to believe it was universal and not platform-specific. Thanks for the clarification!


    Quote Originally Posted by RogueSupra View Post
    So I am correct I looked it up a little deeper than you did.

    We're all human, no need to be smarmy about it. I wasn't wrong, I was just working with conflicting information and there was no clarity on the fact that the codes are platform-specific. That changes everything, obviously.

    I'll clean up my posts in this thread with the new information when I have the time to give it the attention and diligence it deserves.
    Last edited by Wreckless; 12-07-2010 at 12:17 PM.
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  24. #47
    V8 VVTi, 6 Speed Swap! cyberdiamond's Avatar
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    JDM:

    SZ 93.5-2002.7, 5-spd & Auto---- 4.083:1 (LSD optional) small diff, small flange, Code A01A (LSD A01B)

    SZ-R 94.5-96.5, 5-spd---- 4.083:1, LSD standard, small diff, small flange, Code A01B

    SZ-R 96.5-2002.7 V161 6-spd---- 3.769:1, LSD standard, small diff, big flange Code A02B

    RZ & RZ-S 93.5-95.5, V160-6 spd---- 3.266:1, LSD standard, big diff, big flange, cooling 'ears' on diff cover Code B03B

    GZ 93.5-96.5, Auto---- 3.769:1, LSD standard, small diff, big flange, Code A02B

    RZ & RZ-S 93.5-2002.7, Auto---- 3.769:1, (LSD optional) small diff, big flange, Code A02A (LSD A02B)

    RZ & RZ-S 95.5-97.8, V160-6spd---- 3.266:1, LSD standard, small diff, big flange Code A03B

    RZ & RZ-S 97.8-2002.7, V161-6spd (2JZGTE vvti)---- 3.266:1, LSD standard, small diff, big flange Code A03B



    ---------------------------------------

    To make things easier for you I've changed/added all the above with the correct info so you can just copy paste it in.

    B03B is the only JDM diff ever released with the 'cooling ears'

    European-delievered TT 6-spds (and autos) with an OEM external differential coolers did have the 'cooling ears'

    The info above should answer most of your notes/more info needed section.
    Last edited by cyberdiamond; 12-07-2010 at 05:20 PM. Reason: Changed the ending month of 2002

  25. #48
    SupraForums Member cyberBird's Avatar
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    Does anyone know if the LSD diff out of an auto TT will swap into the pumpkin from a 1995 na auto? The 93-95 na's and TT autos had the same beefy axles and the part numbers for the TRD LSD for the na mkiv and TT auto are the same thats why i'm asking.
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  26. #49
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    Quote Originally Posted by FLZ_Boy View Post
    Just a minor correction for the USDM 1998 NA, the torsen lsd was standard in 1998.

    http://www.mkiv.com/specifications/9...ure/index.html
    Negative, I have a '98 N/A auto and ended up being open, so sad. Had to swap out the diff to Auto tt when I did the tt engine swap. I bet they are all open but who knows as they are fairly rare.
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  27. #50
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    Quote Originally Posted by dheff View Post
    Does anyone know if the LSD diff out of an auto TT will swap into the pumpkin from a 1995 na auto? The 93-95 na's and TT autos had the same beefy axles and the part numbers for the TRD LSD for the na mkiv and TT auto are the same thats why i'm asking.
    Yes that should work, can also use tt auto Trd Lsd through '98 on all n/a's, they are all the small 200mm carrier.

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