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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: DIfferent T43 question, can't change OS?

    Started by 02CCSB, January 19th, 2016
    2 Pages
    1 2
    • Replies: 14
    • Views: 3,891
    December 11th, 2016 Go to last post
  2. Sticky Thread Sticky: Improving shifts via the ECM

    Started by GMPX, March 11th, 2012
    15 Pages
    1 2 3 ... 15
    • Replies: 147
    • Views: 48,788
    July 25th, 2016 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: 21
    • Views: 11,006
    October 8th, 2015 Go to last post
  4. Sticky Thread Sticky: 6L80 Reference Material

    Started by joecar, February 21st, 2014
    2 Pages
    1 2
    • Replies: 11
    • Views: 7,172
    February 18th, 2015 Go to last post
  1. 6l80e code p01825

    Started by JCA, 3 Days Ago
    • Replies: 2
    • Views: 45
    2 Days Ago Go to last post
    • Replies: 1
    • Views: 51
    4 Days Ago Go to last post
  2. T87 OS/flash compatibility

    Started by DURAtotheMAX, 1 Week Ago
    • Replies: 3
    • Views: 91
    1 Week Ago Go to last post
  3. 24239353 OS from a Pickup Needed

    Started by 02CCSB, 2 Weeks Ago
    • Replies: 0
    • Views: 36
    2 Weeks Ago Go to last post
  4. 2017 8sp support

    Started by sn00py, January 19th, 2017
    • Replies: 3
    • Views: 667
    4 Weeks Ago Go to last post
    • Replies: 0
    • Views: 64
    September 13th, 2017 Go to last post
  5. Shift pattern 6l80e 6l90e prnd321 prnd6d4d2d1

    Started by 04colyZQ8, September 13th, 2017
    • Replies: 0
    • Views: 59
    September 13th, 2017 Go to last post
    • Replies: 8
    • Views: 244
    August 20th, 2017 Go to last post
  6. 2007 6l80e with later year engine?

    Started by 80vette, August 19th, 2017
    • Replies: 4
    • Views: 96
    August 20th, 2017 Go to last post
  7. 2007 6l80e with later year engine?

    Started by 80vette, August 19th, 2017
    • Replies: 0
    • Views: 39
    August 19th, 2017 Go to last post
  8. Stock 6L90 tune needed

    Started by izaks, August 4th, 2017
    • Replies: 0
    • Views: 68
    August 4th, 2017 Go to last post
  9. Fuel cut on WOT shift

    Started by efilivesteven, April 15th, 2017
    • Replies: 3
    • Views: 335
    June 30th, 2017 Go to last post
  10. 6l80 Tap Shift

    Started by koryenger, June 26th, 2017
    • Replies: 3
    • Views: 201
    June 27th, 2017 Go to last post
  11. Unhappy 6th getting locked out at high speed!

    Started by trailermasher, April 18th, 2010
    4 Pages
    1 2 3 ... 4
    • Replies: 32
    • Views: 12,780
    June 20th, 2017 Go to last post
    • Replies: 6
    • Views: 456
    April 22nd, 2017 Go to last post
  12. 2017 T87 Silverado Calibration Support?

    Started by Doc, February 23rd, 2017
    • Replies: 3
    • Views: 619
    February 23rd, 2017 Go to last post
    • Replies: 1
    • Views: 356
    February 22nd, 2017 Go to last post
  13. Need Help with T43 6L90 OEM Shift

    Started by gaduser, February 15th, 2017
    • Replies: 6
    • Views: 534
    February 17th, 2017 Go to last post
  14. T43 corrupted file after editing (3-5 shift)

    Started by Eng.LSX, October 12th, 2016
    • Replies: 8
    • Views: 1,349
    February 6th, 2017 Go to last post
  15. Need help tuning 6L50 - T43

    Started by Mach2, January 1st, 2017
    • Replies: 1
    • Views: 560
    January 1st, 2017 Go to last post

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