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Forum: 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)

6L80E, 6T40E, etc transmission tuning, incl T43 & T76 TCM. Not Allison.

  1. T43 2007-2009 OS Reflash Compatibility Question

    Started by OEMOBDII, November 5th, 2018
    • Replies: 2
    • Views: 3,030
    GMPX
    November 7th, 2018 Go to last post

  2. Tutd tap shift 8l90e stand alone wirring diagram for gm connect and cruise

    Started by 04colyZQ8, February 28th, 2018
    1 Attachment(s)
    • Replies: 1
    • Views: 3,664
    yrkdmaxh2
    July 26th, 2018 Go to last post

  3. t43 tap u/down in standalone

    Started by proflash, May 30th, 2018
    • Replies: 0
    • Views: 2,077
    proflash
    May 30th, 2018 Go to last post

  4. 2015 Tahoe change rear gear ratio

    Started by Telco, April 22nd, 2018
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 14
    • Views: 9,453
    joecar
    May 13th, 2018 Go to last post

  5. 2016 gmc denali 6.2l di a8 tuning -

    Started by GR8GAME, March 11th, 2018
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 10
    • Views: 8,626
    Highlander
    April 21st, 2018 Go to last post

  6. E38 T43 TUTD final request

    Started by RuraBrute, February 12th, 2018
    • Replies: 4
    • Views: 8,756
    Tre-Cool
    March 23rd, 2018 Go to last post

  7. 6l80 Tap Shift

    Started by koryenger, June 26th, 2017
    6l80 tap shift t43 2 Attachment(s)
    • Replies: 4
    • Views: 9,840
    RuraBrute
    February 10th, 2018 Go to last post

  8. Jeep TJ Brute LS3 E38-T35 6L80e

    Started by RuraBrute, February 4th, 2018
    • Replies: 3
    • Views: 2,580
    RuraBrute
    February 8th, 2018 Go to last post

  9. Early model 6L80e gear hunting in conversions problems

    Started by Hooter, January 23rd, 2018
    • Replies: 6
    • Views: 12,899
    Tre-Cool
    February 1st, 2018 Go to last post

  10. Factory Gas T87 File for OS: 24283067

    Started by TorqueMonster007, January 26th, 2018
    2 Attachment(s)
    • Replies: 1
    • Views: 2,145
    dc_justin
    January 30th, 2018 Go to last post

  11. Surging TCC Lockup - Table request

    Started by Tre-Cool, October 25th, 2015
    2 Pages •
    1 2
    • Replies: 12
    • Views: 17,374
    auspeed
    December 12th, 2017 Go to last post

  12. After a 2011 t43 vette tune / 6l80e troubles

    Started by vassis, October 6th, 2013
    • Replies: 8
    • Views: 7,669
    Tre-Cool
    December 11th, 2017 Go to last post

  13. Question 2015.5 GM 8l90e T87 controller R&D help

    Started by Dr. Oldsmobile, December 2nd, 2017
    8l90e, mondello, oldsmobile, t87
    • Replies: 2
    • Views: 4,231
    Dr. Oldsmobile
    December 4th, 2017 Go to last post

  14. 6.2 ctsv lsa swap transmission problem

    Started by garciam8914, November 27th, 2017
    • Replies: 0
    • Views: 2,005
    garciam8914
    November 27th, 2017 Go to last post

  15. TCM vs ECMOS compatability

    Started by jrad12381, August 3rd, 2016
    • Replies: 3
    • Views: 3,801
    jimboost
    October 30th, 2017 Go to last post

  16. 6l80e code p01825

    Started by JCA, October 19th, 2017
    • Replies: 2
    • Views: 2,425
    JCA
    October 20th, 2017 Go to last post

  17. Anyone have a good tune for 8 speed gas?

    Started by Abesstorage, October 17th, 2017
    • Replies: 1
    • Views: 2,543
    joecar
    October 18th, 2017 Go to last post

  18. T87 OS/flash compatibility

    Started by DURAtotheMAX, October 10th, 2017
    • Replies: 3
    • Views: 9,398
    GMPX
    October 10th, 2017 Go to last post

  19. 2017 8sp support

    Started by sn00py, January 19th, 2017
    • Replies: 3
    • Views: 3,795
    GMPX
    September 18th, 2017 Go to last post

  20. Any harm running a 6l80e with 6l90e tune or visa versa? Tap shift? Work on Silverado?

    Started by 04colyZQ8, September 13th, 2017
    • Replies: 0
    • Views: 2,068
    04colyZQ8
    September 13th, 2017 Go to last post
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