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Location: qld
Registered: December 2003
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T series diff ratios
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Tue, 14 December 2004 09:51
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which models have which ratios. i did search. "diff" "ring and pinnion" "ratio" "t series" ect didnt find a definative answer.
ta22s have 4.1? what about ra60s? theres tons of them around. and the autos and manuals have differant ratios?
ra40?
any thing else to consider like vans and things?
do the numbers after the axle code mean anything?
im after a 4.1 for the t18 diff into.. yeah yeah, you know what its in. cheers.
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I supported Toymods
Location: Perth, WA
Registered: May 2003
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Re: T series diff ratios
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Tue, 14 December 2004 09:55

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first digit: ring gear diameter
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: gear ratio
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: no of pinions, ltd slip-yes/no
Code pinions ls
2 2 no
3 2 yes
4 4 no
5 4 yes
So therefore a T292 is a T series diff with a 4.1:1 ratio and a single spinner. Your probably swapping in a lsd anyway i presume.
i have found a t292 in a ta22 and a ra60 (or a ra40, cant remember)
both were manual from memory
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Location: qld
Registered: December 2003
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