2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

n/a tranny to turbo 2 tranny

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Old May 25, 2004 | 08:59 PM
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n/a tranny to turbo 2 tranny

i have an 88 n/a and i have the oppurtunity to get a tranny from a 88 anniversary edition are there any special things i would have to change if i were to just swap out transmissions or is it just plug and play
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Old May 25, 2004 | 09:01 PM
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yes, everything else. i think driveshaft, rear diff, maybe even halfshafts. its not plug and play by any means. not hard, but not plug n play.
not mention you probably dont need the trans. the gear ratios are very similar and the trans is supposed to be somewhat heavier. nothing to gain unless your n/a is a beast and tearing through n/a trannies.
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Old May 25, 2004 | 09:03 PM
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no it has acouple parts you need to change sorry i dont know much about this subject but thats what i do know
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Old May 25, 2004 | 11:04 PM
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You'll need to change the flywheel, driveshaft, rear diff and the halfshafts. Not hard at all.
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Old May 25, 2004 | 11:22 PM
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oh yea, thats the other part.
flywheel, clutch, pressure plate, and starter. then the driveshaft, rear diff, and halfshafts (?)
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Old May 25, 2004 | 11:40 PM
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hmmm ic the only thing i have trouble with is the flywheel becuz i dont own power tools so its kinda hard to get the flywheel bolt off
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Old May 25, 2004 | 11:43 PM
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not to mention getting to the flywheel. there's no way around it. the t2 flywheel is about an inch more in diameter if i'm not mistaken. whether an inch or 5, it doesnt matter, though. why are you doing this? sell the t2 trans and get an n/a one. make a buck if ya can. or just buy an n/a straight up.
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Old May 26, 2004 | 12:12 AM
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how much do t2 transmissions go for if its not that bad i might think about it
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Old May 26, 2004 | 01:01 AM
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Why would you need to change the flywheel? The only difference in installation is the drive shaft is different. Thats it. The turbo trans has a lower first gear for better take off. But I've installed a TII trans on a N/A and they bolt right up so you don't need to change your flywheel. Yes the turbo motors had different flywheel but why would the flywheel make a difference in installing a TII trans.
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Old May 26, 2004 | 01:46 AM
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The N/A clutch disk and Turbo clutch disk have different splines for the different transmissons. Any of the clutch makers will do custom clutch disk for a little more and you can use the the N/A flywheel.
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Old May 26, 2004 | 05:52 AM
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Originally posted by flamin-roids
Why would you need to change the flywheel? ... Yes the turbo motors had different flywheel but why would the flywheel make a difference in installing a TII trans.
because the starter is on the trans. the flywheel is bigger, so the starter has to be further out. the t2 tranny doesnt bolt up on n/as.
the first is SLIGHTly different, as is another one or 2, but its a relatively small difference.
the tranny bolts up, yes, but thats the only plus. though it bolts to the block, not everything else bolts up so well.
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Old May 26, 2004 | 09:04 PM
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Rotary Racer just did this with my car and I LOVE the TII tranny.

Basiclly.. unless you want to have a 28lb TII flywheel you should get a lightweight ACT flywheel for 250.00 and find a vert counterweight. I went with a TII flywheel for all of one month then got the LW flywheel. The TII stock FW is a friggin PIG and it REALLY slowed down my NA.

The MINIMUM you would need to change would be a TII starter, tranny, TII flywheel, a few quarts of Redline MR90, clutch and then a custom driveshaft from Mazdatrix for about 250.00. You will need them to make you one with the TII connection to the tranny and the NA connection to the diff.

You will need to lengthen the wires that connect the engine to the reverse lights and the over the top switch. It's cake thou. While you are under there replace the rear engine seal to fix that oil leak you probably have or will soon develop. The starter install is pretty straight forward.. the wires won't want to fit but you can relocate them and make them fit while looking stock.

Of course being in the midst of a TII engine swap I went the whole 9 yards and used a TII driveshaft, TII LSD diff and TII halfshafts. I think I am the only person in the world running a TII drivetrain while using the NA 4 lug rotors ;-) That will be changing next month thou.

The tranny shifts different than an NA tranny but it's smoother and doesn't grind like my NA did. I didn't notice much of a weight difference.. if anything the car is a little better balanced with the added weight in the back.
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Old May 27, 2004 | 10:36 AM
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i am actually thinking of doing this to im going to be doing the n/a tII swap so i am deciding to do all the rear stuff first put in the tranny and whole rear end and a tII driveshaft my question is i got a 91 auto im not good with mechanics work yet where would the best place be to take it to to do the tranns swap and rear end also the only recommendation is to get a light weight flywheel before the install?
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Old May 27, 2004 | 12:01 PM
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Oh that sucks. A mechanic will rip you off. I had one try and charge me $400 just to take the tranny out and then some more $$$ to put it back in. I'm doing a swap and this will be my 2nd one. If you were local I'd do it for $500. Its a bitch to do but very worth it. As far as the flywheel goes I'm using a N/A with a TII trans and it works just fine.
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Old May 27, 2004 | 12:22 PM
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are you sure you didnt swap your n/a tranny for an n/a tranny? the trans are different, the starters are different, the clutch assembly (flywheel, clutch disc, pressure plate) are different, the driveshafts are different (and thats just stuff that touches and/or is "in" the transmission).
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Old May 29, 2004 | 11:10 PM
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yeah when you are hitting the flywheel nut to try to get the flywheel off and you damaged the nut where can you buy another one and what exactly would i have to replace if i damaged the stud the nuts goes on
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Old May 29, 2004 | 11:42 PM
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eccentric shaft, lol
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Old May 29, 2004 | 11:50 PM
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haha thats what i was thinking
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