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Midnight Sun Member
Joined: 10 Jan 2004 Posts: 606 Location: Ellensurg, Washington Name: Eric Haugland
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Posted: Mon Jan 26, 2004 5:55 pm Post subject: Transmission clarification |
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Felt bad for hijacking Project 86 T/A's post.
Alright... Lets see if I can figure some stuff out.
Please, correct me where I am wrong.
1993-1997 F-bodies were equipped with the LT1 and a t56.
1998-2002 F-bodies were equipped with the LS1 and a t56.
The T56 for the LT1 should bolt right into any thirdgen.
The T56 for the LS1 will only bolt in with a shortened driveshaft and torque arm.
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I am currently going to pull my 700r4 and 305 lg4
So the engine I plan on buying should be 1986+, nothing older will work with a 1993-1997 T56 and I will need a special bellhousing and adapter plate if I plan on bolting the 1993-1997 T56 to anythin gother then an LT1 engine.
I really plan on putting a 6 speed in my car, so any assitance would be nice so I don't end up buying a transmission and pedals and hydraulics and then find out it wont fit into my car.
Thanks,
Eric _________________
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CheezX Member
Joined: 16 Jan 2004 Posts: 90
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Posted: Mon Jan 26, 2004 7:46 pm Post subject: |
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T56 from LT1 will work, all you need is a new crossmember. The flywheel is for 1 piece rear main seal blocks. If your block is older than '86 you need an aftermarket flywheel. The bellhousing will bolt up to non-LT1 blocks, no adapter stuff is necessary. Make sure you use all the LT1 stuff: flywheel, clutch, etc.
93 T56 is rated at 400 ft-lbs, 0.74 6th gear ratio
94-97 is 450 ft-lbs with 0.5 6th gear
Externally they're the same.
T56 from LS1 has a hydraulic throw-out bearing and will not bolt up to a regular SBC. You probably don't want that unless you're swapping it in with the LS1.
*edited to fix rear main seal thing*
Last edited by CheezX on Tue Jan 27, 2004 10:57 am; edited 1 time in total |
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Project_1986_TA Member
Joined: 13 Jan 2004 Posts: 198 Location: Burien/Seatac
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Posted: Mon Jan 26, 2004 9:42 pm Post subject: |
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Question....Does T56 have both 5 and 6spds? I have seen transmissions that say both, im confused. |
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CheezX Member
Joined: 16 Jan 2004 Posts: 90
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Posted: Mon Jan 26, 2004 9:57 pm Post subject: |
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6-speed only. V6 4th gens and maybe some V8s did come with 5-speeds, possibly a T5. |
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84transam383 Banned
Joined: 25 Jan 2004 Posts: 431 Location: bend, or
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Posted: Tue Jan 27, 2004 12:51 am Post subject: |
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CheezX wrote: | T56 from LT1 will work, all you need is a new crossmember. The flywheel is for 2 piece rear main seal blocks. If your block is older than '86 you need an aftermarket flywheel. The bellhousing will bolt up to non-LT1 blocks, no adapter stuff is necessary. Make sure you use all the LT1 stuff: flywheel, clutch, etc.
93 T56 is rated at 400 ft-lbs, 0.74 6th gear ratio
94-97 is 450 ft-lbs with 0.5 6th gear
Externally they're the same.
T56 from LS1 has a hydraulic throw-out bearing and will not bolt up to a regular SBC. You probably don't want that unless you're swapping it in with the LS1. | just a little clarification...the flywheel off any LT1 is for 1 peice rear main seal. and the input shaft on the LS1 t56 differs from the LT1 t56 ,and isnt compatable |
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Roshambo Member
Joined: 08 Jan 2004 Posts: 280 Location: Sacramento, CA
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Posted: Tue Jan 27, 2004 1:26 am Post subject: |
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CheezX wrote: | 6-speed only. V6 4th gens and maybe some V8s did come with 5-speeds, possibly a T5. |
Yeah, like Mike said, T-56 = 6 speed.
And I am about 99.9% the LT1 was never offered with a T5.
-Joe _________________ 1970 Cadillac Sedan DeVille Hardtop - 472/TH400, Air Bags with 10 switches, Memphis Audio.
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Slacker85TA Member
Joined: 23 Jan 2004 Posts: 39 Location: Tigard, OR
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Posted: Tue Jan 27, 2004 6:16 am Post subject: |
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All LT1 F-Bodies and Corvettes with manual transmissions are 6 speeds. V6 F-Bodies got an updated version of the T5 that so many 3rd Gen owners are familiar with. _________________ '85 T/A: 305 LG4, 700R4, Edelbrock TES headers, Hooker catback, K&N filter
'95 Z28: LT1, 4L60E, bone stock |
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