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Thread: T56 Install

  1. #16
    Join Date
    Apr 2003
    Location
    Kennesaw, GA
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    61
    I know for sure that it will fit as I have ridden in a 91 T-bird with a T-56. There is a guy that doesn't post much on any MN12 based forums that lives in Rome, GA that converted his 5.0 car to a hydraulic setup T-5, then turned around a couple years later and put in the T-56. The car is wicked as hell too as it has a 331 twin turbo setup to go with the 6 speed. I could ask him to do a writeup about the conversion....

  2. #17
    Join Date
    Jul 2002
    Location
    Boston, MA
    Posts
    7,258
    There is not alot of information from people that have done this. I did not get to hear about the one that was attempted/completed? in an SC.

    A new updated parts list can help get more people that are on the fence of this to take the jump.
    The GTO T-56 is said to be stronger then the older camaro/firebird model. It is also supposed to put the shifter very close to the stock tunnel opening.

    Most people know that with the MCleod adapter, it can be bolted up to a 3.8l/5.0l/5.8l, and different driveshaft length and modification to the cross member are necessary. But that about where it stops for common knowledge.

    The other pieced that are of interest is what clutch, flywheel, slave cyl., starter are necessary to make it work.

    Ford Racing catalogue has the T-56 for 5.0ls but we still have the shifter location with those units. And I think it is cable clutch still. $2400.
    1994 Supercoupe 5spd Custom Modded. 2010 Shootout-Best Custom Award-415WHP off the bottle-12.2535 @112.18 off the bottle. Best HP to date 445whp Best TQ to date 516ft/lbs Modified with the 1% $$
    1990 35th 5spd 2011 Carlisle 1st place class winner. 12.9@108MPH 1.9/60fts Modified with the 99% $$
    2 SCs 12sec club member.

  3. #18
    Join Date
    Apr 2002
    Location
    Lakeville, MN
    Posts
    13,381
    If you're gonna keep your car under 600rwhp then a T-56 from newer generation may work. For certain, the ones out of the Firebird and such from GM are not strong enough for our cars if pushing over 300lb/ft of torque. The Viper gear set would work from that era of T-56. That's when I was looking into it. I haven't dug around since.

    Last time I looked (2 years ago) the T-56 was getting into the Hot Rod aftermarket big time with all sorts of options available including different tail shaft housings, shift lever positions, and different gears, mix and match stuff. I figured that I could find whatever I need when I'm ready.

    Tremec has the torque ratings published on their site.

  4. #19
    Join Date
    Jul 2002
    Location
    Boston, MA
    Posts
    7,258
    I noticed that they have a form for manufacturers to fill out.
    I wonder if we get enough people in a buy we can get something custom set up to be a simple drop in.

    Before we can ask them we would need measurements for our stock M5R2.



    Size A
    Size B
    Size C
    Size D
    Size E
    Size F
    Size G
    Size H

    Input Shaft Pilot Dia.
    Input Shaft (Spline Count)
    Output Shaft (Spline Count)
    Output Shaft Design
    flange
    slip yoke
    1994 Supercoupe 5spd Custom Modded. 2010 Shootout-Best Custom Award-415WHP off the bottle-12.2535 @112.18 off the bottle. Best HP to date 445whp Best TQ to date 516ft/lbs Modified with the 1% $$
    1990 35th 5spd 2011 Carlisle 1st place class winner. 12.9@108MPH 1.9/60fts Modified with the 99% $$
    2 SCs 12sec club member.

  5. #20
    Join Date
    Apr 2002
    Location
    Norcross, GA
    Posts
    3,152
    When I talked to a Tremec tech rep last year he recommended the TKO.
    90 5spd, best ever E.T. 12.250
    best ever 1/4mi speed 112.89 mph
    Current dyno tune 383.54 rwhp 418.88 rwt
    2004 Cadillac CTS, 14.616 @ 91.84mph.

  6. #21
    Join Date
    Apr 2002
    Location
    Karns, TN
    Posts
    1,326
    Subscribing - something that I would like to do.
    1989 Cougar XR7 - [I]Modified[/I]
    1967 Cougar XR7 - untouched -
    2011 F350 Crew Cab Superduty FX4
    6.7 diesel 435hp/800 ft lbs torque
    2009 Smart
    2010 Harley Davidson Ultra Classic

  7. #22
    Join Date
    Apr 2002
    Location
    Lakeville, MN
    Posts
    13,381
    This has been talked about quite a bit. Here is a thread over on TCCoA that has a image of the M5R2 trans and dimensions.
    http://forums.tccoa.com/showthread.php?t=55283

    Note that the future of manual transmissions is going to be the dual clutch transmissions. Their quite cool, and once they get rolling, their torque capacity should be quite nice.
    Last edited by Mike8675309; 06-23-2008 at 01:32 PM.

  8. #23
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    16,861
    Quote Originally Posted by Mike8675309 View Post
    For certain, the ones out of the Firebird and such from GM are not strong enough for our cars if pushing over 300lb/ft of torque.
    I don't know where these ideas come from. Stock LT1's made over 300ftlbs torque. The transmissions being referred to here might not stand up to 5500rpm clutch dumps, but neither will your axles. I would have no reservations about putting one in my car. They are stronger than an M5R2.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  9. #24
    Join Date
    Apr 2002
    Location
    St. Charles, MO
    Posts
    19,935
    Quote Originally Posted by 93Blackbird View Post
    I know for sure that it will fit as I have ridden in a 91 T-bird with a T-56. There is a guy that doesn't post much on any MN12 based forums that lives in Rome, GA that converted his 5.0 car to a hydraulic setup T-5, then turned around a couple years later and put in the T-56. The car is wicked as hell too as it has a 331 twin turbo setup to go with the 6 speed. I could ask him to do a writeup about the conversion....
    I'd love to hear more about this car. BTW are you talking about Wes ?

    David
    91 SC AOD 4.2..2.3 Whipple........10.92 @ 126.70
    93 SC AOD 347 Turbo.................10.04 @ 138.99
    My Garage

  10. #25
    Join Date
    Apr 2002
    Location
    Lakeville, MN
    Posts
    13,381
    Quote Originally Posted by XR7 Dave View Post
    I don't know where these ideas come from. Stock LT1's made over 300ftlbs torque. The transmissions being referred to here might not stand up to 5500rpm clutch dumps, but neither will your axles. I would have no reservations about putting one in my car. They are stronger than an M5R2.
    Typical torque ratings for the T-56 pulled out of a oem car are 400-450 lb/ft. Viper ratings are 550lb/ft. If I go through the trouble to put a t-56 in my car, I'm not going to have much stock about the rest of my drivetrain. I guess I shouldn't assume the same of others.

    Viper transmissions have unique spline counts. 26 on the input 30 on the output. Fbody's have 26 on the input, but 27 on the output. Fords have 10 on the input and 31 on the output.

    It's a very doable swap if someone has the time and a transmission.

  11. #26
    Join Date
    Sep 2002
    Location
    SE CT
    Posts
    681

    t-56 pics

    here are some pic of the eng/belh/trans plus some
    Attached Images Attached Images      

  12. #27
    Join Date
    Sep 2002
    Location
    SE CT
    Posts
    681

    more t56

    here are some parts/boxes with P/Ns
    Attached Images Attached Images     

  13. #28
    Join Date
    Sep 2002
    Location
    SE CT
    Posts
    681

    notes

    did some measuring last night after work.
    the center of the shifter on the t56 is maybe a little under an inch forward of the m5r2.

    The trans looks to be about an inch shorter, but the trans mount is farther back 1-1 1/2".

    The splined portion of pilot shaft goes into the crank pilot cavity about 1/4" maybe a tad more. (maybe a weld up and turn down to ford spec for some industrious person?)

    Don't have an in the car fit up yet, have to call the machine shop to get pricing for work on engine.

    Until the engine goes away for work I going to use it to fit as much as I can.
    MikeH

  14. #29
    Join Date
    Sep 2002
    Location
    SE CT
    Posts
    681

    Smile more notes

    Was looking through a bunch of downloads and printouts here are a couple of tid bits.
    Here are the McLeod parts recommended by Billy M (Tech advisor @ McLeod)
    260571 is a 26 spline 11" disc for the LS1 T-56.

    361954 P/P (going to use the Sach's I have <2000 miles)

    P20810 Pressure Plate Shim.

    No you do not need to change your slave. (changed same time as P/P)

    Haven't found anyone with the shim or any info about it.
    This may actually be easier than it sounds?
    MikeH

  15. #30
    Join Date
    Jul 2002
    Location
    Boston, MA
    Posts
    7,258
    Trying to understand your notes.
    The input shaft is too long where the pilot bearing is or is the spline part too bid and push/hit the pilot bearing.

    I am also not following what clutch components you are going to use, are you using a LS1 T-56 clutch/pp with a 26 spline disc. And a stock LS1 slave or the stock SC slave?



    Quote Originally Posted by talonhead View Post
    Was looking through a bunch of downloads and printouts here are a couple of tid bits.
    Here are the McLeod parts recommended by Billy M (Tech advisor @ McLeod)
    260571 is a 26 spline 11" disc for the LS1 T-56.

    361954 P/P (going to use the Sach's I have <2000 miles)

    P20810 Pressure Plate Shim.

    No you do not need to change your slave. (changed same time as P/P)

    Haven't found anyone with the shim or any info about it.
    This may actually be easier than it sounds?
    MikeH
    1994 Supercoupe 5spd Custom Modded. 2010 Shootout-Best Custom Award-415WHP off the bottle-12.2535 @112.18 off the bottle. Best HP to date 445whp Best TQ to date 516ft/lbs Modified with the 1% $$
    1990 35th 5spd 2011 Carlisle 1st place class winner. 12.9@108MPH 1.9/60fts Modified with the 99% $$
    2 SCs 12sec club member.

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