CaliTRDSC

My Transmission is going out on my 93 Sc300. I have researched and to the best of my knowledge Auto TT transmission will work with a sc400 driveshaft. Does the driveshaft connect on the rear end side. Im stuck can anybody help me out. Point me in the right direction?

gerrb

iTrader: (34)

I hope I am getting your question right . The tail shaft of the USDM Auto TT transmission has a 4 bolt flange and the SC400 driveshaft has the 3 bolt . You will need to use the 3 bolt tail shaft of the SC400 auto transmission and swap it out to that of the Auto TT transmission so you can use the SC400 driveshaft.

But something more important you need to check I guess .. the 93 sc300 auto transmission is cable controlled I believe where as the Auto TT transmission is electronically controlled so I don't even think you can use it . I maybe wrong but hopefully maybe somone else who knows better about that will chime in.

VAgs430

iTrader: (6)

theres more info on SF... I believe you have to move some stuff over from the NA trans to the TT one (valve body?). Also your better off buying a JDM one out of an aristo, its a lot cheaper and I believe the flange is the same as the sc300 one so you wont have to change your driveshaft. I'm actually attempting the same swap within the next few weeks.

CaliTRDSC

I apologize for the confusion. i was talking about the aristo transmission. i would be mating it to a 2jzge.
Aristo Transmission into a 93 Sc300 with stock engine.
will the stock driveshaft work or which could i use?

xiaolong

you will need to modify the harness as well.

xiaolong

and if i recall from when I had a TT auto, you will need to modify the driveshaft to fit, at least the "front" part of the driveshaft.

cant see much, but here was my front piece that I had to extend to fit

CaliTRDSC

Damn im at a dead end. Any suggestions on what i can do as far as a blown tranny?

xiaolong

From personal experience, as I went through 5 trannys before I was done with the auto, Here's what probably happening...

The TT trannys that you are getting are old, obviously.
What happens is when they sit for a while, unused, the transmission fluid begins to sludge up.
If you get it from overseas, they NEVER change their tranny fluid.....
When you introduce new transmission fluid, it immediately causes an acidic reaction and will almost instantaneously destroy your gears, within about 10 minutes of driving sometimes.
You have to get a tranny that has come STRAIGHT OUT of a supra, otherwise you run this risk every time.
I finally found a tranny and had to flush it about 15 times with fluid, then it was fine. At that point though, I was done with the auto and decided to go manual because I thought it broke again.

Here are your options:
5 speed
built auto
Find an auto that just came out of a supra

CaliTRDSC

so i got a hold of a sc300 tranny. what should i do next. as far as maintence.and as far as building it? how would i go about that.
upgrade TC
what else?