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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: T43/E38 6L90 Shift points change

    Started by 55chevdelray, May 20th, 2013
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 26,195
    6 Days Ago 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: 150
    • Views: 100,937
    3 Weeks Ago Go to last post
  3. Sticky Thread Sticky: 6L80 Reference Material

    Started by joecar, February 21st, 2014
    2 Pages
    1 2
    • Replies: 15
    • Views: 19,039
    July 9th, 2018 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: 14,079
    December 11th, 2016 Go to last post
    • Replies: 10
    • Views: 285
    6 Days Ago Go to last post
  1. Unhappy 6th getting locked out at high speed!

    Started by trailermasher, April 18th, 2010
    5 Pages
    1 2 3 ... 5
    • Replies: 40
    • Views: 19,813
    6 Days Ago Go to last post
  2. TCC lockup for 6th only?

    Started by derkscustomcars, July 21st, 2020
    • Replies: 6
    • Views: 246
    3 Weeks Ago Go to last post
    • Replies: 27
    • Views: 472
    3 Weeks Ago Go to last post
  3. Question on Full Flashing T87

    Started by TorqueMonster007, August 11th, 2020
    • Replies: 1
    • Views: 173
    August 12th, 2020 Go to last post
  4. Need Stock Tune for T87 OS# 24281915

    Started by TorqueMonster007, August 10th, 2020
    • Replies: 0
    • Views: 126
    August 10th, 2020 Go to last post
    • Replies: 7
    • Views: 2,948
    July 24th, 2020 Go to last post
    • Replies: 1
    • Views: 967
    June 18th, 2020 Go to last post
  5. 24239353 OS from a Pickup Needed

    Started by 02CCSB, October 5th, 2017
    • Replies: 1
    • Views: 916
    June 18th, 2020 Go to last post
  6. In need of stock 2016 t87 file

    Started by Andyb756, May 10th, 2020
    • Replies: 0
    • Views: 407
    May 10th, 2020 Go to last post
  7. 4l80e to six speed (cda009)

    Started by Joemmahaffey1, April 1st, 2020
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,716
    April 29th, 2020 Go to last post
  8. Ive got P0700 amd P182E problems

    Started by Hooter, December 7th, 2019
    • Replies: 3
    • Views: 974
    April 21st, 2020 Go to last post
  9. T43 Acadia Transmission Tuning for TCC locking and Unlocking

    Started by ZigBlazer, March 28th, 2020
    2 Pages
    1 2
    • Replies: 12
    • Views: 1,048
    April 7th, 2020 Go to last post
  10. 8L90 shift/shudder problems

    Started by Telco, April 5th, 2020
    • Replies: 0
    • Views: 343
    April 5th, 2020 Go to last post
    • Replies: 3
    • Views: 420
    March 28th, 2020 Go to last post
    • Replies: 1
    • Views: 1,455
    March 4th, 2020 Go to last post
  11. 6L80E tuning question

    Started by ToonerSQUAD89, February 27th, 2019
    2 Pages
    1 2
    • Replies: 11
    • Views: 2,863
    January 26th, 2020 Go to last post
  12. Full Flash Locked T43 TCM

    Started by GreenColorado, January 21st, 2020
    read tcm issue, t43, tcm
    • Replies: 1
    • Views: 579
    January 23rd, 2020 Go to last post
  13. Exclamation VIN Change Not Updating

    Started by TBMSport, November 26th, 2019
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,548
    November 28th, 2019 Go to last post
  14. Need T87 stock files pretty bad.

    Started by 07blueCR, September 26th, 2019
    • Replies: 3
    • Views: 1,741
    September 26th, 2019 Go to last post

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