Torsen differential Q's

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Postby BoostedBlueToyotas » Fri Jan 07, 2005 12:23 am

OK, Gary what does the EPC have ?

If you dont have the EPC could you PM me with a 93 VIN number and
I will look the differential up and see if that helps

Thanks
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Postby RedCelicaTRD » Fri Jan 07, 2005 12:33 am

If you look in the EPC it will give you two part numbers, one being open and one being torsen. It will also show you the production range of those diffs. It says something like 8/91-8/93 for both types. However, if you look for a 90&91 rear diff it also gives you the same two part numbers but with a different production span.
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Postby BoostedBlueToyotas » Fri Jan 07, 2005 1:52 am

Well I am interested in the diagram of the differential, I am assuming
that if I give it a 93 VIN number and search for the differential I will
get a diagram with the Torsen components in it and I can figure out
how to identify a diff that has the Torsen installed :)

I know in some diagrams it will give date ranges but usually it has
an inset picture when it does it, so ....
Tim Plessing
Columbia, MD

1990 ST185 - blue/blue cloth 152K-SOLD
1993 MR2 turbo - blue/black leather 59K TOTALLED/PARTING OUT
2006 Acura TSX - black/black 6 spd
2006 Mini Cooper S JCW Space blue/Silver roof 39k
2006 Mini Cooper JCW Silver/black roof 34k
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Postby BoostedBlueToyotas » Fri Jan 07, 2005 1:58 am

Nevermind my EPC has the differential on Fig 4101

The second page (hit next) has a new diagram with header
ST185 Limited Slip Differential, Hmm wonder if you can just
buy a new one :D
Tim Plessing
Columbia, MD

1990 ST185 - blue/blue cloth 152K-SOLD
1993 MR2 turbo - blue/black leather 59K TOTALLED/PARTING OUT
2006 Acura TSX - black/black 6 spd
2006 Mini Cooper S JCW Space blue/Silver roof 39k
2006 Mini Cooper JCW Silver/black roof 34k
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Postby jazz » Fri Jan 07, 2005 3:39 am

just opened the spare diff and its the same as GM-GT4 one, its from a 1990 GT4. :smokes:
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Postby RedCelicaTRD » Fri Jan 07, 2005 5:08 am

You cant buy a new one. The number doesnt work in the toyota ordering system. You wouldnt want to anyways, they cost over $1,500.
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Postby BADNEWS » Sun Feb 06, 2005 4:59 pm

CMS-GT4 wrote:Some claim that there are some 185s that came with torsen, and some claim that only '93 model came w/ torsen standard.


I was going through the EPC at the Toyota dealership and it shows that the torsen LSD was only an option in 90 and 91 for the US market. So all 92 and 93 Alltracs have an open rear diff.
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Postby CMS-GT4 » Sun Feb 06, 2005 6:26 pm

The BGB shows both being an option for '92.
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Postby etantshi » Sun Feb 06, 2005 6:29 pm

You'd be better off buying an aftermarket rear... the stock one is quite expensive if bought by the the dealer.
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Postby yettegog » Mon Feb 07, 2005 2:51 am

a torsen went for (i think) ~$400 on ebay about 3 months ago for our cars.
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Postby BoostedBlueToyotas » Mon Feb 07, 2005 3:24 am

Aftermarket ? They would probably sell the third member at best and
then you would have to disassemble the differential :doh:

I will buy a new one from the dealer first, I'm not kidding. Only thing
is that I am not sure if I can reuse my axles, have to check if the LS
used different axles, else its a new one for me. Pretty tired of looking
for a differential and trying to make sure its LS.
Tim Plessing
Columbia, MD

1990 ST185 - blue/blue cloth 152K-SOLD
1993 MR2 turbo - blue/black leather 59K TOTALLED/PARTING OUT
2006 Acura TSX - black/black 6 spd
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Postby yettegog » Tue Feb 08, 2005 7:31 pm

well it seems I may be in luck. earlier in this topic someone said you could test by doing a pull with one side of the car on asphalt and the other on snow. Well, I did that and indeed, it was like driving with all four wheels on asphalt, normal acceleration, etc.

It may be a possibility that I have an lsd! (which would be amazing). the only other thing I can say that makes me thing i might have it is that the driving characteristics in snow seemed to be too good to be true, it would go exactly where I wanted it to go, when i wanted it, every time.

either that or it's just wishful thinking :shrug:
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Postby TomsGT4 » Wed Apr 27, 2005 11:00 pm

Well, here's what I dug up.
According to the 1990 Celica New Car Features Book (Pub #NCF056U).

It looks as though the rear LSD was an option for the ST185 from 90-93.
So that means that there can be any number of rear LSD's out there.
Any of our cars could have them. We'd just have to open them up to look.

It's a pretty good read.
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Postby BoostedBlueToyotas » Thu Apr 28, 2005 12:12 am

I bought a brand spanking new one (got it about a month ago).
It cost about 1350 (ouch).

Tom, I really think you should take a picture of that entire manual
and send the pictures to me :D , even Gary dont have those
pictures :lol:
Tim Plessing
Columbia, MD

1990 ST185 - blue/blue cloth 152K-SOLD
1993 MR2 turbo - blue/black leather 59K TOTALLED/PARTING OUT
2006 Acura TSX - black/black 6 spd
2006 Mini Cooper S JCW Space blue/Silver roof 39k
2006 Mini Cooper JCW Silver/black roof 34k
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Postby CMS-GT4 » Thu Apr 28, 2005 3:33 pm

Does that book have any info on the transfer case's diffs?
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