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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: 16
    • Views: 20,221
    3 Weeks Ago Go to last post
  2. Sticky Thread Sticky: T43/E38 6L90 Shift points change

    Started by 55chevdelray, May 20th, 2013
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 27,577
    September 16th, 2020 Go to last post
  3. Sticky Thread Sticky: Improving shifts via the ECM

    Started by GMPX, March 11th, 2012
    16 Pages
    1 2 3 ... 16
    • Replies: 150
    • Views: 106,374
    August 29th, 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: 14,922
    December 11th, 2016 Go to last post
    • Replies: 15
    • Views: 923
    3 Weeks Ago Go to last post
    • Replies: 0
    • Views: 246
    October 11th, 2020 Go to last post
  1. Need Stock Tune for T87 OS# 24281915

    Started by TorqueMonster007, August 10th, 2020
    • Replies: 1
    • Views: 435
    September 26th, 2020 Go to last post
  2. Unhappy 6th getting locked out at high speed!

    Started by trailermasher, April 18th, 2010
    5 Pages
    1 2 3 ... 5
    • Replies: 40
    • Views: 20,795
    September 16th, 2020 Go to last post
  3. TCC lockup for 6th only?

    Started by derkscustomcars, July 21st, 2020
    • Replies: 6
    • Views: 436
    September 2nd, 2020 Go to last post
    • Replies: 27
    • Views: 1,076
    August 31st, 2020 Go to last post
  4. Question on Full Flashing T87

    Started by TorqueMonster007, August 11th, 2020
    • Replies: 1
    • Views: 254
    August 12th, 2020 Go to last post
    • Replies: 7
    • Views: 3,095
    July 24th, 2020 Go to last post
    • Replies: 1
    • Views: 1,048
    June 18th, 2020 Go to last post
  5. 24239353 OS from a Pickup Needed

    Started by 02CCSB, October 5th, 2017
    • Replies: 1
    • Views: 980
    June 18th, 2020 Go to last post
  6. In need of stock 2016 t87 file

    Started by Andyb756, May 10th, 2020
    • Replies: 0
    • Views: 475
    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: 1,917
    April 29th, 2020 Go to last post
  8. Ive got P0700 amd P182E problems

    Started by Hooter, December 7th, 2019
    • Replies: 3
    • Views: 1,084
    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: 1,235
    April 7th, 2020 Go to last post
  10. 8L90 shift/shudder problems

    Started by Telco, April 5th, 2020
    • Replies: 0
    • Views: 442
    April 5th, 2020 Go to last post
    • Replies: 3
    • Views: 548
    March 28th, 2020 Go to last post
    • Replies: 1
    • Views: 1,672
    March 4th, 2020 Go to last post
  11. 6L80E tuning question

    Started by ToonerSQUAD89, February 27th, 2019
    2 Pages
    1 2
    • Replies: 11
    • Views: 3,178
    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: 682
    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: 1,745
    November 28th, 2019 Go to last post

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