S and T series diff info

[slide86]

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

[Javal]

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

[pen15]

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

[af300e]

E series LSD? You sure? Were 4X4 liteaces e series with LSD?

[Paoabarai]

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

[slide86]

hilux is G series

[Javal]

Yes.

Use punctuation next time.

[slydar]

no e series lsd available.

actually there is some really shit old holden "cone type" lsd you can make fit. but its crap.

rear hilux diff is g (or A in later models with higher output, turbo diesel/4L ect) front is F.

also ALL t series are small axle/zenki, except later model ae86 ('85.5-87)

[YAZE]

Just quickly. The KE70 wagon and sedan, both having the borg warner, are they the same bolt pattern? So an AE71 tailshaft will bolt up in my KE70 wagon?

Cheers

[Javal]

Yes.

10char