1G Manual to Auto Conversion

[sleeper1ga]

So I will be swapping my 90 gsx manual to auto, but I want to make sure that when I'm acquiring parts that I'm picking up the right ones. I know 90 manual transmissions are different then other years, so I'm wondering if/what I would need specifically if I were to put in a different year auto trans. I understand that there is different spline counts on the transfer case on different years, and I would like to do a later 1g trans and 4 bolt LSD, but I am wondering what I would need in order to do this swap. Do all automatic transmission mount the same in 1g's(I know mount is different from manual)?
Thanks in advance,
Sleeper1ga

 

[Rev_olution]

My suggestion, I'm in the process now, is just to find a rolling car or entire setup and transfer over.

 

[built 97]

My suggestion, I'm in the process now, is just to find a rolling car or entire setup and transfer over.

I agree. Parts can be hard to find for these cars.

 

[talonracer12]

I hate to direct you to another site but try atdsm.com They have a couple of people that have did the swap already and have a list of things. This is what I used to find the parts I needed for my auto swap. I would start there and see how far it gets you.

 

[Xtremboost87]

I have an auto 1g Talon TSI, and I want to swap it to manual!

 

[hotrodssnova]

You 2 should set up a swap deal.

 

[Lester B]

Shit I'll set up a trade. I'm seriously thinking, probably will, make the manual to auto conversion. 3rd gear grinds anyways. Haha

I'll check out that atdsm.com. Thanks guys.
Cheers

 

[90_AWD_Thunder]

90 and 91 dsms share the three bolt rear diff 92 and up are all 4 bolts as for the swap you will need all three components trans, t case, and rear diff. I would search for a 92-94 donor car and go from there you will also need the tcu and harness as well. 92-94 dsms will also have 23 spline t case as well which is the stronger of the 2. And yes all auto trans for 1g's share the same bolt patterns.

 

[Lester B]

90 and 91 dsms share the three bolt rear diff 92 and up are all 4 bolts as for the swap you will need all three components trans, t case, and rear diff. I would search for a 92-94 donor car and go from there you will also need the tcu and harness as well. 92-94 dsms will also have 23 spline t case as well which is the stronger of the 2. And yes all auto trans for 1g's share the same bolt patterns.

Thank you Thunder! I will store that info fo sho!

 

[breaksdaily]

dont forget the special ring that slides into the end of the crankshaft were the flexplate bolts!

 

[Lester B]

End of the crank!? Where tc slides onto?
What's it called? Is it specific to a manual to auto swap?
Thanks for the info breaks daily