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    Default S and T series diff info

    to prevent people asking same questions all the time. if you know more stuff add it up. definate stuff too, i know some celica diffs will fit but there are differences that i don't know of for sure so i haven't put them in.

    S Series = ADM = no LSD available
    T Series = JDM or T18 + others = plenty of LSD's available (KAAZ, Cusco, TRD etc)

    S Series 8 bolts carrier to axle housing
    T Series 10 bolts carrier to axle housing

    S series = ADM AE86
    T series = JDM AE86, T18

    when fitting a T series diff you need a shorter rear tail shaft either out of a JDM 86 or a T18. the rear shaft for a t series is 20mm shorter than that of an s series


    ADM AE86 760mm, T18 740mm

    Ke70's have a borgwarner diff different to S and T series. both S and T series will bolt in but an s or t series tailshaft must be used.

    tailshaft and diff combo's (assuming you have fitted 4AC or 4AGE and using T50 box)

    AE86 + T series = ADM or JDM front half + T18 or JDM rear half
    KE70 + S series = ADM 86 or JDM 86 front half + ADM 86 rear half
    KE70 + T series = same as AE86 with T series
    AE71 + S series = same as KE70 with S series
    AE71 + T sereis = same as AE86 with T series

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    Factory fitted Differentials for xE7x and AE86

    KE70 Sedan, Wagon: Borg-Warner

    AE71 Sedan, Wagon: Borg-Warner

    KE70 Panel Van: S-series

    AE71 Panel Van: S-series

    TE72 Hatchback: T-series (ADM)

    Australian Domestic Market (herein referred to as 'ADM') AE86 Sprinter: S-series

    Japanese Domestic Market (herein referred to as 'JDM') AE86 Sprinter (Kouki): T-Series (Kouki)

    Japanese Domestic Market (herein referred to as 'JDM') AE86 Sprinter (Zenki): T-Series (Zenki)


    LSD Fitment

    Borg-Warner: No LSD's Available

    S-Series: No LSD's Available (although extremely rare factory ones are rumored)

    T-Series (all versions): LSD's Available from the factory, Commonly Available aftermarket (KAAZ, Cusco, TRD etc)

    F and G series: LSD's Available from the factory, some aftermarket LSD's available

    E-Series have no LSD's available.

    Different versions of the 'T-Series'


    JDM 'Kouki' (late model) T-Series:

    Slightly thicker axles compared to Zenki / ADM t-series (1~1.5mm)

    Larger bearings compared to Zenki / ADM t-series

    Disc Brake only (reference required)

    1410mm Width

    Mounts will line up to any xE7x / AE86

    JDM 'Zenki'(early model) T-Series

    Slightly skinnier axles compared to Kouki T-series

    Smaller bearings compared to Kouki T-series

    Disc OR Drum brake (Disc and drum brake have slightly different housings)

    1410mm Width

    Mounts will line up to any xE7x / AE86

    ADM TE72 T-Series

    Axles / bearings / Housing same thickness as JDM zenki drum

    Drum brake only

    1410mm width

    Mounts will line up to any xE7x / AE86

    ADM TA22 (post 73), RA23, RA28

    Axle thickness same as TE72 / JDM Zenki (however they are shorter)

    Drum brake only

    1365mm width

    Mounts will not line up properly with xE7x / AE86 mounts

    ADM RA40, RA60

    Axles thickness / length (splines unconfirmed) as TE72 / JDM Zenki

    Drum brake only

    1410mm width

    there is a minor difference in the measurements of the mounting points for the trailing arms and also the spring seats are slightly smaller also but factory xE7x, AE86 springs and trailing arms still bolt directly into this diff


    Suitable Toyota Differentials to transplant into your AE71 / AE86


    Moderate power:

    Assuming you are running a T-40 / T-50 gearbox.

    T series Differential from a JDM AE86 or ADM TE72, using the following tailshaft combo:

    AE86 Front

    TE72 Rear OR JDM AE86 Rear

    This is because the 'nose' of the carrier on a T-series is 20mm longer than that of an S-series

    Large power:

    E / F / G series, using a custom tailshaft + mounts


    Understanding Toyota Diff Codes / List of Toyota Differentials

    Toyota diff codes are broken down into several parts. As an example we'll use this one:

    T292

    This is then broken down into several parts, like this

    T/29/2

    The 1st digit denote the size of the Crownwheel

    The 2nd two digits denote the ratio of the differential

    The final digit denotes the number of pinion gears and if the differential is a factory Limited Slip Differential (LSD)

    The 'translator' for diff codes is as follows:

    First digit:

    A = 138mm

    B = 145mm

    C = 6.25"

    D = 6.62"

    E = 7.1"

    F = 7.5"

    G = 8"

    H = 9"

    J = 9.25"

    K = 9.5"

    L = 10.5"

    M = 12.5"

    N = 13.5"

    P = 14"

    Q = 12"

    R = 162mm

    S = 6.38"

    T = 6.7"

    U = 6"

    V = 10.6"

    W = 15.5"

    X = 142mm

    Y = 158mm

    Z = 202mm

    - no ring gear = FWD

    Second, third digits:

    01 = 3.30

    02 = 3.36

    03 = 3.545

    04 = 3.556

    05 = 3.70

    06 = 3.889

    07 = 3.90

    08 = 4.111

    09 = 4.222

    10 = 4.375

    11 = 4.444

    12 = 4.625

    13 = 4.79

    14 = 4.875

    15 = 5.125

    16 = 5.286

    17 = 5.60

    18 = 5.714

    19 = 5.833

    20 = 6.167

    21 = 6.667

    22 = 6.78

    23 = 6.833

    24 = 7.64

    25 = 4.556

    26 = 5.571

    27 = 3.364

    28 = 4.30

    29 = 4.10

    30 = 3.727

    31 = 3.909

    32 = 6.591 or 4.807

    33 = 7.503 or 5.583

    34 = 6.781 or 4.786

    35 = 7.636 or 5.60

    36 = 4.778

    37 = 3.583

    38 = 3.417

    39 = 3.154

    40 = 5.375

    41 = 3.308

    42 = 6.500

    43 = 3.550

    44 = 3.214

    45 = 3.533

    46 = 2.928

    47 = 3.944

    48 = 3.356

    49 = 3.729

    50 = 3.400

    51 = 3.736

    52 = 3.722

    53 = 3.250

    54 = 3.941

    55 = 3.333

    56 = 2.821

    57 = 4.058

    58 = 3.238

    59 = 3.234

    60 = 3.519

    61 = 2.724

    62 = 2.892

    63 = 2.655

    64 = 4.312

    65 = 3.837

    66 = 3.071

    67 = 3.526

    68 = 3.095

    69 = 4.176

    70 = 5.857

    71 = 2.962

    72 = 3.949

    73 = 4.285

    Fourth digit:

    2 = 2 pinions, not factory LSD

    3 = 2 pinions, yes factory LSD

    4 = 4 pinions, not factory LSD

    5 = 4 pinions, yes factory LSD

    Information sourced from: Toymods.org

    Thanks to Johnny Rochester and Just Half Steppin' for their contributions
    Last edited by seek; 26th January 2009 at 11:11 AM. Reason: no E-series lsd's
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    Quote Originally Posted by Javal View Post
    E / F / G series: LSD's Available from the factory, some aftermarket LSD's available

    E series LSD? You sure? Were 4X4 liteaces e series with LSD?
    Last edited by af300e; 22nd December 2008 at 12:11 AM.

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    Quote Originally Posted by Javal View Post

    Japanese Domestic Market (herein referred to as 'JDM') AE86 Sprinter (Kouki): T-Series (Kouki)

    Japanese Domestic Market (herein referred to as 'JDM') AE86 Sprinter (Zenki): T-Series (Zenki)


    Different versions of the 'T-Series'

    JDM 'Kouki' (late model) T-Series:

    Slightly thicker axles compared to Zenki / ADM t-series (1~1.5mm)

    Larger bearings compared to Zenki / ADM t-series

    Disc Brake only (reference required)

    1410mm Width

    Mounts will line up to any xE7x / AE86

    JDM 'Zenki'(early model) T-Series

    Slightly skinnier axles compared to Kouki T-series

    Smaller bearings compared to Kouki T-series

    Disc OR Drum brake (Disc and drum brake have slightly different housings)

    1410mm Width

    Mounts will line up to any xE7x / AE86


    if kouki axles are 1 - 1.5mm bigger than zenki, what is the thickness of zenki axles???

    or what are other ways of finding out if i have kouki or zenki

    (previous owner changed diffs and cant figure what i got in my 86)

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    Quote Originally Posted by Javal View Post
    ADM RA40, RA60

    Axles thickness / length (splines unconfirmed) as TE72 / JDM Zenki

    Drum brake only

    1410mm width

    there is a minor difference in the measurements of the mounting points for the trailing arms and also the spring seats are slightly smaller also but factory xE7x, AE86 springs and trailing arms still bolt directly into this diff
    I'd like to queery this... i have what i beleive to be an RA60 Diff, and yes the trailing arms are off by a bit, and the spring seats are smaller. However they are MUCH smaller, to the point i do not see it safe to use AE86 Springs. Mine is also 1430mm, about 10mm Wider each side than AE86! Do i have a different differential than thought??


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    Quote Originally Posted by blair View Post
    I'd like to queery this... i have what i beleive to be an RA60 Diff, and yes the trailing arms are off by a bit, and the spring seats are smaller. However they are MUCH smaller, to the point i do not see it safe to use AE86 Springs. Mine is also 1430mm, about 10mm Wider each side than AE86! Do i have a different differential than thought??

    well i know for a fact that ra40 uses the same t series centre and axel splines but its 1430~1440 mm wide and spring seats are very close to ae86 (close enoguh not to worry about) so if you are sure its a t series it could well be the ra60 diff...
    Owner built and tuned 9000rpm 402kw atw 3sGTE - AE86

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    a quick question for u gurus can i put in an ra40 center into my t series i think its a small axle version because all the sway bar mounts are welded on if any1 has some good info ill be appreciating it alot cheers mat
    the dyno pull to 300rwkw

    BT20v is making 300rwkw like i said i would without nitrous so now its time for some spray and see if she will run a 10s or less

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    Quote Originally Posted by pen15 View Post
    a quick question for u gurus can i put in an ra40 center into my t series i think its a small axle version because all the sway bar mounts are welded on if any1 has some good info ill be appreciating it alot cheers mat
    Yes.

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    Hilux diff. belong to which series? E, F or G?

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    hilux is G series

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