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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: 4,089
    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: 50,729
    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: 11,351
    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: 7,363
    February 18th, 2015 Go to last post
  1. After a 2011 t43 vette tune / 6l80e troubles

    Started by vassis, October 6th, 2013
    • Replies: 8
    • Views: 2,830
    9 Hours Ago Go to last post
    • Replies: 2
    • Views: 72
    1 Week Ago Go to last post
    • Replies: 0
    • Views: 45
    2 Weeks Ago Go to last post
  2. TCM vs ECMOS compatability

    Started by jrad12381, August 3rd, 2016
    • Replies: 3
    • Views: 1,114
    October 30th, 2017 Go to last post
  3. 6l80e code p01825

    Started by JCA, October 19th, 2017
    • Replies: 2
    • Views: 116
    October 20th, 2017 Go to last post
  4. Anyone have a good tune for 8 speed gas?

    Started by Abesstorage, October 17th, 2017
    • Replies: 1
    • Views: 120
    October 18th, 2017 Go to last post
  5. T87 OS/flash compatibility

    Started by DURAtotheMAX, October 10th, 2017
    • Replies: 3
    • Views: 184
    October 10th, 2017 Go to last post
  6. 24239353 OS from a Pickup Needed

    Started by 02CCSB, October 5th, 2017
    • Replies: 0
    • Views: 87
    October 5th, 2017 Go to last post
  7. 2017 8sp support

    Started by sn00py, January 19th, 2017
    • Replies: 3
    • Views: 727
    September 18th, 2017 Go to last post
    • Replies: 0
    • Views: 119
    September 13th, 2017 Go to last post
  8. Shift pattern 6l80e 6l90e prnd321 prnd6d4d2d1

    Started by 04colyZQ8, September 13th, 2017
    • Replies: 0
    • Views: 113
    September 13th, 2017 Go to last post
    • Replies: 8
    • Views: 300
    August 20th, 2017 Go to last post
  9. 2007 6l80e with later year engine?

    Started by 80vette, August 19th, 2017
    • Replies: 4
    • Views: 135
    August 20th, 2017 Go to last post
  10. 2007 6l80e with later year engine?

    Started by 80vette, August 19th, 2017
    • Replies: 0
    • Views: 53
    August 19th, 2017 Go to last post
  11. Stock 6L90 tune needed

    Started by izaks, August 4th, 2017
    • Replies: 0
    • Views: 91
    August 4th, 2017 Go to last post
  12. Fuel cut on WOT shift

    Started by efilivesteven, April 15th, 2017
    • Replies: 3
    • Views: 386
    June 30th, 2017 Go to last post
  13. 6l80 Tap Shift

    Started by koryenger, June 26th, 2017
    • Replies: 3
    • Views: 230
    June 27th, 2017 Go to last post
  14. Unhappy 6th getting locked out at high speed!

    Started by trailermasher, April 18th, 2010
    4 Pages
    1 2 3 ... 4
    • Replies: 32
    • Views: 13,219
    June 20th, 2017 Go to last post
    • Replies: 6
    • Views: 524
    April 22nd, 2017 Go to last post
  15. 2017 T87 Silverado Calibration Support?

    Started by Doc, February 23rd, 2017
    • Replies: 3
    • Views: 675
    February 23rd, 2017 Go to last post

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