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Thread: LS6/T56 in a 1997 GMC

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  1. #1

    LS6/T56 in a 1997 GMC

    I have started this project and will probably pull the 305 tonight!

    I plan on using Nelson for the harness.
    -Do you recommend them for the tune also?

    I guess I will leave the factory harness to run the gauges, cruise and what ever else.
    -Is this the best way to do it?
    -What did you guys do with the wires left over (like the old injector plug)?

    Has anybody used shorty headers or Mid-length from Mac for a Camaro?

    The truck came with a 5 speed, so I'm hoping the quick dis-connect from the clutch master cylinder will hook up to the T56 slave.

    Please let me know your thoughts and opinions,

    Kris
    Last edited by knute_gis; 04-18-2008 at 11:15 AM.

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
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    Leave all wires until you're 100% finished with the install and then cut the wire off back to the loom.

    Order a PCM pre-programmed from NP when you order the harness.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3

  4. #4
    Did you use electrical tape when you cut the wires?

  5. #5
    Join Date
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    I use a piece of heat shrink tubing.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Jun 2007
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    maine
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    hey your in lucky my 98 im doing a 5.3 t-56 swap to and i disconnected it from my stock 5 speed and it fits perfect in the t-56! so just be careful when you remove it.
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  7. #7
    Join Date
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    Quote Originally Posted by RedHeartbeat View Post
    I use a piece of heat shrink tubing.
    did you do each individual wire? that shrink tube stuff is great!
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  8. #8
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    Yep, one at a time. Took all of about 15 minutes.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  9. #9
    I would recommend the B&M ripper shifter, if they make it for the LS1 T56.

    I had one in a 95 formula and was really nice.

  10. #10
    Join Date
    Jun 2007
    Location
    maine
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    haha its funny that you mention it because theres a guy on here his name is QUIK hes got a crazy like 408 turbo or something nutty and he said he hated the ripper and told me to go with a hurst or a pro 5.0 so i did i got lucky and found one for 100$ on ebay brand new shipped. saved me 90$.
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

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