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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. Sticky Thread Sticky: 6L80 Reference Material

    Started by joecar, February 21st, 2014
    2 Pages
    1 2
    • Replies: 15
    • Views: 14,371
    July 9th, 2018 Go to last post
  2. Sticky Thread Sticky: DIfferent T43 question, can't change OS?

    Started by 02CCSB, January 19th, 2016
    2 Pages
    1 2
    • Replies: 14
    • Views: 10,064
    December 11th, 2016 Go to last post
  3. Sticky Thread Sticky: Improving shifts via the ECM

    Started by GMPX, March 11th, 2012
    15 Pages
    1 2 3 ... 15
    • Replies: 147
    • Views: 80,013
    July 25th, 2016 Go to last post
  4. Sticky Thread Sticky: T43/E38 6L90 Shift points change

    Started by 55chevdelray, May 20th, 2013
    3 Pages
    1 2 3
    • Replies: 21
    • Views: 20,004
    October 8th, 2015 Go to last post
  1. Need T87 stock files pretty bad.

    Started by 07blueCR, 3 Weeks Ago
    • Replies: 3
    • Views: 265
    3 Weeks Ago Go to last post
  2. Need a stock 2010 Express van T43 OS 24254909

    Started by cynight, August 20th, 2019
    • Replies: 1
    • Views: 368
    4 Weeks Ago Go to last post
  3. Unhappy 6th getting locked out at high speed!

    Started by trailermasher, April 18th, 2010
    4 Pages
    1 2 3 ... 4
    • Replies: 37
    • Views: 17,282
    September 15th, 2019 Go to last post
    • Replies: 1
    • Views: 194
    September 10th, 2019 Go to last post
  4. T87 Cant Full flash change OS

    Started by duramaximizer, August 15th, 2019
    • Replies: 1
    • Views: 194
    August 15th, 2019 Go to last post
  5. 8 Speed T87 compatibility

    Started by LS-SWAPPER, October 2nd, 2018
    • Replies: 9
    • Views: 1,404
    July 24th, 2019 Go to last post
    • Replies: 6
    • Views: 2,059
    July 20th, 2019 Go to last post
  6. 6L80E tuning question

    Started by ToonerSQUAD89, February 27th, 2019
    • Replies: 5
    • Views: 744
    June 26th, 2019 Go to last post
    • Replies: 5
    • Views: 1,820
    June 16th, 2019 Go to last post
    • Replies: 9
    • Views: 3,141
    June 9th, 2019 Go to last post
  7. 8l90e tutd

    Started by Brads_rs, February 1st, 2019
    • Replies: 3
    • Views: 812
    March 18th, 2019 Go to last post
  8. Exclamation Engine Reduced Power Help!

    Started by TorqueMonster007, December 8th, 2016
    • Replies: 1
    • Views: 1,176
    February 19th, 2019 Go to last post
  9. 6l80 help!

    Started by bensalz1911, October 28th, 2018
    • Replies: 2
    • Views: 578
    February 19th, 2019 Go to last post
  10. Urgent, Need T43 File 2014 Silverado

    Started by TwistedDiesel, January 14th, 2019
    • Replies: 2
    • Views: 551
    January 16th, 2019 Go to last post
  11. T87 TCC desired slip

    Started by Eng.LSX, October 18th, 2018
    • Replies: 3
    • Views: 714
    January 12th, 2019 Go to last post
  12. 6L90 to 6L80 Express VAN 8.1L E38 2013

    Started by gerbot_4000, September 3rd, 2018
    • Replies: 4
    • Views: 940
    November 27th, 2018 Go to last post
  13. T43 Calibration Full Flash Does Not Update?

    Started by TBMSport, November 13th, 2018
    • Replies: 4
    • Views: 801
    November 19th, 2018 Go to last post
    • Replies: 2
    • Views: 565
    November 7th, 2018 Go to last post
    • Replies: 1
    • Views: 777
    July 26th, 2018 Go to last post
  14. T87 CAN Protocol for 8L90 control?

    Started by 1BadAction, March 1st, 2018
    • Replies: 9
    • Views: 1,615
    July 26th, 2018 Go to last post

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