Transmissions and Drivetrain Need help with your trans? Problems with your axle?

adding a 6

Old Apr 17, 2003 | 03:55 PM
  #1  
Cronic3rd's Avatar
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From: Sharonville OH
Car: 98 Z28 vert
Engine: LS1
Transmission: automagic
Axle/Gears: 2.73 - boo racing yay MPG
adding a 6

What is the bare minimum needed to swap a t-56 into a T-5 car? Tranny, bellhousing shifter and crossmember? Clutch hydrolics? I am thinking that going with a t-56 is the best bet since it can actually take power and I am one step further to horse power heaven..
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Old Apr 17, 2003 | 06:28 PM
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
your speedo probably won't work though.

Flywheel and clutch kit would be a good idea as well since I believe they are larger and should hold better.
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Old Apr 18, 2003 | 06:46 AM
  #3  
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From: Sharonville OH
Car: 98 Z28 vert
Engine: LS1
Transmission: automagic
Axle/Gears: 2.73 - boo racing yay MPG
a speedo isn't necessary. My motor is stockish LG4 at this point so i am not worried about exceeding the capabilities of a 10.5" clutch. I really don't truse a T5 so I am prolly gonna go with the stronger t56. Not to mention 6 gears is cool,
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Old Apr 18, 2003 | 11:16 AM
  #4  
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From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
The LT1 T56 has a 10.5" clutch too.

Bare minimum would be pedals, hydraulics, flywheel / disc / pp, tranny w/ bellhousing & fork.

Stock LT1 flywheel needs an 86-up Gen I SBC or an LT1 crank to bolt to also... or the aftermarket flywheel.

Or, you're already read my post on using non LT1 clutch parts which is another option.

Matthew
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Old Apr 18, 2003 | 02:19 PM
  #5  
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From: Sharonville OH
Car: 98 Z28 vert
Engine: LS1
Transmission: automagic
Axle/Gears: 2.73 - boo racing yay MPG
Why would I need anw pedals? Ins't a clutch pedal a clutch pedal? I would really like to use my clutch as it is brand new. I have read your post about the clutch parts and would defenatly like to know ho it goes.
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Old Apr 18, 2003 | 03:08 PM
  #6  
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From: Bergen County, NJ
Car: 1989 IROC-Z
Engine: L98
Transmission: T-56
Originally posted by jmd
The LT1 T56 has a 10.5" clutch too.

Bare minimum would be pedals, hydraulics, flywheel / disc / pp, tranny w/ bellhousing & fork.

Stock LT1 flywheel needs an 86-up Gen I SBC or an LT1 crank to bolt to also... or the aftermarket flywheel.

Or, you're already read my post on using non LT1 clutch parts which is another option.

Matthew
youre probably right, but when i did my lt1 t56 i coulda sworn that the clutch was an 11" . i got it from a 96 TA.
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Old Apr 18, 2003 | 03:21 PM
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From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Originally posted by NJITIROC
youre probably right, but when i did my lt1 t56 i coulda sworn that the clutch was an 11" . i got it from a 96 TA.
Just a little FYI, but the third gen 153 tooth flywheels fit in the LT1 bellhousing fine. A 168 tooth wheel for an 11" clutch does not. Thought about this when planning my throwout bearing LT1 T56 swap.

I'll probably have pics of a V8 T5 disc next to an LT1 T56 disc soon. Already have pics of both inputs, showing they're the same except for o.d. of the bearing retainer.

Matthew
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Old Apr 18, 2003 | 03:22 PM
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From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Originally posted by Cronic3rd
Why would I need anw pedals? Ins't a clutch pedal a clutch pedal?
You're right. I don't know if there's any difference in the stud on the pedal or not, but you should be able to use your pedals, yes.

I would really like to use my clutch as it is brand new. I have read your post about the clutch parts and would defenatly like to know ho it goes.
Stay tuned
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Old Apr 19, 2003 | 08:50 PM
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
On the Clutch size: Here's what I've gathered from my firsthand experience swapping my T56 into my car in place of the T5. I wish I'd taken pictures of the clutches and flywheels before I put the T56 in, but I neglected to do so. In any case, the flywheels are both the same diameter, but the friction surface extends much closer to the edge of the T56 flywheel, and the T56 clutch is a larger diameter (and very different design) than the T5 unit. I know it sounds strange, but it's the truth, the T56 runs an 11 inch clutch on the same diamteter flywheel that the T5 runs a 10.5 inch clutch on. I have some pictures of my T56 flywheel and clutch getting installed on the new motor and I can take some pictures of the T5 flywheel and clutch, once I get home from college in a couple weeks if anyone is still interested at that point? Let me know, and I hope this helps

-Paul
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Old Apr 19, 2003 | 08:55 PM
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
On the Pedals: Yes, the stock T5 pedals will work
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Old Apr 19, 2003 | 09:54 PM
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From: Your neighbor's hood, MD
Car: 1987 Camaro Z28 IROC-Z
Engine: 5.7L TPI
Transmission: T5
Axle/Gears: 3.42:1
Originally posted by quadgoat
On the Pedals: Yes, the stock T5 pedals will work
How about the T5 slave cyl setup??
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Old Apr 19, 2003 | 10:16 PM
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
Originally posted by ES87iroc
How about the T5 slave cyl setup??
Technically the slave will work, yes, however the hydraulic line is not long enough. The slave and master are the same for the t-56 and the t-5, but I purchased a new setup from GM which came assembled, filled with fluid and bled. This included a reservoir and line, master, slave and line (braided steel I might add ) and it was all bled and ready to go on. So, yes, the slave will work, but you'll need a longer line, and by the time you bother with it it's a lot easier to get the setup from GM (mine was about $150)

-Paul
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