Limited-Slip Differential Information
From: "Marc L. Summers-SysAdmin"
Subject: Re: Limited Slip Code
Date: Wed, 24 May 1995 4:36:37 PDT
>From the owners manual 1993 MR2 page 104
Open the drivers side door, (US), and just above the door lock
loop, you will see the certification label.
The number on the lower left side of the label is
the axle code.
Quote from the manual:
If the last digit of the axle code is a "3" or a "5" then
your vehicle has a limited slip differential.
The code starts like this: A/TM:-
My code reads: A/TM:-735/E153
^
+--------- the last digit is "5"
So that's the way you tell.
The second part of the code is the transmission code:
S51 = Automatic transmission
E153 = Manual transmission
Hope that helps.
--
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Date: Mon, 5 Jun 1995 08:35:25 -0500
From: uunet!diane.csg.mot.com!mikep@uunet.uu.net (Mike Pittelkow)
To: uunet!validgh.com!mr2-interest@uunet.uu.net
Subject: Re: Limited Slip Code
> There are two manual transmission codes. S54 and E153. The S54 is used on
> the NA model and the E153 on the Turbo. The last seems a heavy duty type,
>
> The LS is an E153 with small changes inside and is marked LS in the options
> codes.
>
> >
> >> > > The E153 is the Transmission code. (S51 = Automatic, E153 = Manual)
> >> > >
> >> >
> >
> >These codes also show # of pinion gears, and the gear sizes. I'll try
> >and bring in my magic decoder ring tomorrow.
> >
As promised...
Secret decoder ring:
x xx x
1 23 4
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"
R 162mm
S 6.38"
T 6.7"
U 6"
V 10.6"
W 15.5"
X 142mm
Y 158mm
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 5.583
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
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, an E153 is a 7.1" ring gear, 5.125 ratio, 2 pinions, w/ limited slip.
From: "Kostas G. D. Chryssos Ph.D." (sv1bt@compulink.gr)
Just to say hallo. By the way I looked at the data on the differentials,
about the codes etc and something does not
seem right there. The E153 is mentioned as a two planet/LSD unit. It is for
sure a four planet one and may-or-not be an LSD (the 91' T has a non-LSD
E153 unit). Should that info be corrected?
Best regards,
Kostas G.D.Chryssos Ph.D.
ELFON Ltd. 30 Ikarias str., Glyfada GR 16675 Athens HELLAS (GREECE)
Tel: + 301 9628212 Fax: + 301 9628539 e-mail: sv1bt@otenet.gr -
sv1bt@compulink.gr