Drivetrain Clutch, Torque Converter, Transmission, Driveline, Axles, Rear Ends

Swapping 6-spd into my 79 SE TA

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Old Feb 26, 2005 | 10:09 PM
  #1  
4birdman's Avatar
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Swapping 6-spd into my 79 SE TA

OK, before you go on about me hacking up a Bandit car, let me just say that I will never get rid of this car and I want to do it the way I want it. It is my dream car and I'm gonna do it right.

Now, on to the more important stuff. When I bought the car, it had a mild rebuild on the 400 and a Saginaw in place of the Super T-10. I pretty much annihilated the Saginaw. Now the car is getting a built 400, around 400hp, and I still need a transmission. I decided I'm gonna go the road less traveled and get a 6-spd setup.

Now, I know it isn;t an easy swap, but that isn;t a problem for me. I can figure it out. Thing is, would I be looking for a LT1 T56 or an LS1 T56? And what all do I need to complete the swap? I know I need the special bellhousing and all, but anything else?

I really can;t wait to get this thing back on the road. It has been a year since I've driven it and it is driving me nuts!
Old Mar 1, 2005 | 08:05 PM
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Re: Swapping 6-spd into my 79 SE TA

No one knows of anything?
Old Mar 1, 2005 | 08:35 PM
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Re: Swapping 6-spd into my 79 SE TA

i would think you would need the lt1 tranny and preferably from the 94 and up F or Y body since the torque ratings are a little higher. You would need all the associated stuff ie.. pp, flywheel, disc, slave cylinder, cluth fork, and a way to convert the speed sensor signal to your gauges hopefully it won't be to hard since you already have a stick good luck Art
Old Mar 1, 2005 | 10:09 PM
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Re: Swapping 6-spd into my 79 SE TA

The Pontiac bellhousing bolt pattern is different than Chevy (I assume you are talking a real 6.6 here, correct), so neither trans is going to bolt up. Somebody out there somewhere makes a BOP bellhousing for T56s. I just can't remember where to find it. You might try asking over at www.pro-touring.com

All the 94-up F-body T56s were rated for 450ft lbs torque. That should be plenty. If you want to go higher, D&D offers a Viper T56.

Todd
Old Mar 1, 2005 | 10:16 PM
  #5  
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Re: Swapping 6-spd into my 79 SE TA

A 94-97 model is probably the best. The reason being that the LS1 trannys where made in Mexico or something like that and they are not as good.

Either way make sure you always wear a hat in that car, and only take it off for one thing and one thing only. lol

I wanna hear more about the motor, screw the tranny stuff.

Bret
Old Mar 7, 2005 | 06:00 PM
  #6  
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Re: Swapping 6-spd into my 79 SE TA

Here, this may be of some help..http://www.weirhotrodproducts.com/id1.html

Brad
Old Mar 8, 2005 | 07:17 AM
  #7  
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Re: Swapping 6-spd into my 79 SE TA

Originally Posted by 4birdman
No one knows of anything?
Well, a lot of people here know "something".... but since its Advanced Tech, it isn't necessarily about drive train issues. I'll move the post to the "Drivetrain" forum.

McLeod makes a universal apapter to mate the LS1 T56 to just about any (US) car on the road. They chose the LS1 version, because it uses the conventional pusher type clutch, not the pull-back design of the LT1 version, and its limited clutch availability.

http://www.mcleodind.com/
Old Mar 8, 2005 | 11:28 AM
  #8  
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From: Columbus, Oh
Re: Swapping 6-spd into my 79 SE TA

Not to change your direction, but have you considered a Richmond 6 speed?

May be easier to adapt to the Poncho.....
Old Mar 8, 2005 | 02:06 PM
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Re: Swapping 6-spd into my 79 SE TA

Originally Posted by ChevytuffB.A.
Here, this may be of some help..http://www.weirhotrodproducts.com/id1.html

Brad
I've got that. Got my t56 without a bellhousing so I just bought that instead. Is this a BOP 400 or chev 400?
Old Mar 8, 2005 | 10:21 PM
  #10  
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Re: Swapping 6-spd into my 79 SE TA

Originally Posted by iansane
I've got that. Got my t56 without a bellhousing so I just bought that instead. Is this a BOP 400 or chev 400?
I dont think it matters whether its a BOP or chevy. the Kit says" kits to drop '93-02 Camaro / Firebird T-56s behind practically any GM eight-pot mill from the last 40 years." So I think all he has to do is calling Bob and tell him what you need and he'll hook you hope...goodluck

Brad
Old Mar 9, 2005 | 12:30 AM
  #11  
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Re: Swapping 6-spd into my 79 SE TA

Originally Posted by ChevytuffB.A.
I dont think it matters whether its a BOP or chevy. the Kit says" kits to drop '93-02 Camaro / Firebird T-56s behind practically any GM eight-pot mill from the last 40 years." So I think all he has to do is calling Bob and tell him what you need and he'll hook you hope...goodluck

Brad

True...if he went with the Weir unit.

But if it was a chev, the stock lt1 setup will all work (hydraulics, etc) except flywheel/clutch b/c the 400's external balance 2pc(i belive it's 2) rms.

Last edited by iansane; Mar 9, 2005 at 12:33 AM.
Old Mar 9, 2005 | 01:59 AM
  #12  
ChevytuffB.A.'s Avatar
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From: Kokomo, IN
Re: Swapping 6-spd into my 79 SE TA

Originally Posted by iansane
True...if he went with the Weir unit.

But if it was a chev, the stock lt1 setup will all work (hydraulics, etc) except flywheel/clutch b/c the 400's external balance 2pc(i belive it's 2) rms.
you're right..he'll have to have the clutch, flywheel, and pressure plate neutrally balanced and tear down the engine to have it internally balanced...

so im assuming the chev 400s are externally balanced but not the BOP?
Old May 16, 2005 | 08:33 AM
  #13  
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From: Spring Hill, Florida
Re: Swapping 6-spd into my 79 SE TA

this is exactly what id like to do with my 79 TA. this car is actually the 403/TH350 version, so i wasnt even fortunate enough to start out w/ a MT car. when i first bought this car, in 1996, i didnt want do deal with upgrades that were not bolt-on's. but, its been almost 10 years and my talents have been improved.

i really want to get this car back on the road and enjoy it... but i dont want to try cruising with a freakin 3-speed auto... especially when free-way cruising is 75mph. i dont want to tach out my fresh 403 just trying to keep up w/ traffic.

the TKO seems like a more conservative option to the T56. however, if i can find a 4G parts car, ill have every part i need to perform the MT swap into my 2G TA.

Its rumored that the 4G T56 will bolt to the SeriesI 3.8 V6, which means itll bolt to the BOP bellhousings as well.

Mondello performance sells the flywheels and pilot bearings that i would need. and hopefully, if i find a 4G parts car, i could retrofit the entire clutch hydraulic assembly and tranny. im thinking that ill also need an electronic-to-mechanical converter so i can keep my stock cable-driven speedo, no?

any other things that i should plan for when sorting out this swap?
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