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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
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 26,289
    March 31st, 2021 Go to last post
  2. Sticky Thread Sticky: Improving shifts via the ECM

    Started by GMPX, March 11th, 2012
    16 Pages
    1 2 3 ... 16
    • Replies: 152
    • Views: 125,384
    March 10th, 2021 Go to last post
  3. Sticky Thread Sticky: T43/E38 6L90 Shift points change

    Started by 55chevdelray, May 20th, 2013
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 33,114
    September 16th, 2020 Go to last post
  4. Sticky Thread Sticky: DIfferent T43 question, can't change OS?

    Started by 02CCSB, January 19th, 2016
    2 Pages
    1 2
    • Replies: 14
    • Views: 18,127
    December 11th, 2016 Go to last post
    • Replies: 2
    • Views: 191
    1 Week Ago Go to last post
    • Replies: 0
    • Views: 122
    2 Weeks Ago Go to last post
  1. 3.7 diff gears shift speeds

    Started by JCA, May 12th, 2021
    • Replies: 0
    • Views: 850
    May 12th, 2021 Go to last post
    • Replies: 3
    • Views: 2,220
    April 30th, 2021 Go to last post
  2. Stock 6L90 tune needed

    Started by izaks, August 4th, 2017
    • Replies: 5
    • Views: 1,584
    April 25th, 2021 Go to last post
    • Replies: 0
    • Views: 266
    April 24th, 2021 Go to last post
  3. T87 CAN Protocol for 8L90 control?

    Started by 1BadAction, March 1st, 2018
    2 Pages
    1 2
    • Replies: 10
    • Views: 4,253
    March 14th, 2021 Go to last post
    • Replies: 6
    • Views: 536
    March 11th, 2021 Go to last post
  4. 6L90E shuddering when converter locked and under load

    Started by Jim_PA, January 21st, 2015
    2 Pages
    1 2
    • Replies: 15
    • Views: 6,275
    March 10th, 2021 Go to last post
    • Replies: 18
    • Views: 3,013
    March 10th, 2021 Go to last post
    • Replies: 0
    • Views: 664
    October 11th, 2020 Go to last post
  5. Need Stock Tune for T87 OS# 24281915

    Started by TorqueMonster007, August 10th, 2020
    • Replies: 1
    • Views: 845
    September 26th, 2020 Go to last post
  6. Unhappy 6th getting locked out at high speed!

    Started by trailermasher, April 18th, 2010
    5 Pages
    1 2 3 ... 5
    • Replies: 40
    • Views: 24,128
    September 16th, 2020 Go to last post
  7. TCC lockup for 6th only?

    Started by derkscustomcars, July 21st, 2020
    • Replies: 6
    • Views: 1,090
    September 2nd, 2020 Go to last post
    • Replies: 27
    • Views: 3,342
    August 31st, 2020 Go to last post
  8. Question on Full Flashing T87

    Started by TorqueMonster007, August 11th, 2020
    • Replies: 1
    • Views: 657
    August 12th, 2020 Go to last post
    • Replies: 7
    • Views: 3,924
    July 24th, 2020 Go to last post
  9. 24239353 OS from a Pickup Needed

    Started by 02CCSB, October 5th, 2017
    • Replies: 1
    • Views: 1,353
    June 18th, 2020 Go to last post
  10. In need of stock 2016 t87 file

    Started by Andyb756, May 10th, 2020
    • Replies: 0
    • Views: 853
    May 10th, 2020 Go to last post
  11. 4l80e to six speed (cda009)

    Started by Joemmahaffey1, April 1st, 2020
    2 Pages
    1 2
    • Replies: 17
    • Views: 3,481
    April 29th, 2020 Go to last post

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