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Forum: Allison 5 & 6 Speed

Allison 5 & 6 Speed Transmission for Duramax and 8.1L gas.

  1. Exclamation Sticky Thread Sticky: Allison 6spd TCM versions

    Started by GMPX, May 23rd, 2017
    • Replies: 1
    • Views: 6,973
    May 23rd, 2017 Go to last post
  1. A50 Shift Pattern Issues

    Started by jda, May 11th, 2017
    • Replies: 1
    • Views: 1,351
    December 17th, 2020 Go to last post
    • Replies: 1
    • Views: 574
    November 15th, 2020 Go to last post
  2. 2005 LLY / AL5 Limp undet wot

    Started by derkscustomcars, July 8th, 2020
    • Replies: 2
    • Views: 1,190
    July 12th, 2020 Go to last post
  3. A40 in a Hummer

    Started by dscholz, June 12th, 2020
    • Replies: 0
    • Views: 1,633
    June 12th, 2020 Go to last post
  4. AL5 stream

    Started by vectorbundle, May 15th, 2020
    • Replies: 1
    • Views: 613
    May 15th, 2020 Go to last post
  5. A40 TCM Tuning

    Started by 08lmm72mm, May 2nd, 2020
    • Replies: 0
    • Views: 761
    May 2nd, 2020 Go to last post
  6. Flashscan V2 J1939?

    Started by cadillackid, August 13th, 2017
    2 Pages
    1 2
    • Replies: 11
    • Views: 5,947
    March 5th, 2020 Go to last post
  7. Recovering Bricked T14a TCMs

    Started by TwistedDiesel, March 4th, 2020
    • Replies: 0
    • Views: 554
    March 4th, 2020 Go to last post
  8. Allison A42 Support?

    Started by schroedj, May 1st, 2018
    • Replies: 7
    • Views: 2,214
    March 4th, 2020 Go to last post
  9. A51 Medium duty TCM

    Started by cadillackid, March 4th, 2020
    • Replies: 0
    • Views: 518
    March 4th, 2020 Go to last post
  10. AL5 read protect

    Started by vectorbundle, March 1st, 2020
    • Replies: 2
    • Views: 662
    March 1st, 2020 Go to last post
  11. 15.5 LML T87 Stock file

    Started by z71ecb, February 14th, 2020
    • Replies: 3
    • Views: 1,241
    February 17th, 2020 Go to last post
  12. Which tables are wrong ?

    Started by staytuned, January 22nd, 2020
    • Replies: 0
    • Views: 692
    January 22nd, 2020 Go to last post
  13. Line Pressure 2015 Allison T87

    Started by Fishhead Performance, March 11th, 2019
    • Replies: 2
    • Views: 1,962
    January 13th, 2020 Go to last post
  14. Cool 600 rpm slip limit solved!!!! OS 25941752

    Started by mitchd, May 31st, 2013
    14 Pages
    1 2 3 ... 14
    • Replies: 130
    • Views: 52,943
    January 10th, 2020 Go to last post
  15. A40 Full Read option

    Started by GMPX, March 9th, 2015
    8 Pages
    1 2 3 ... 8
    • Replies: 73
    • Views: 25,041
    December 17th, 2019 Go to last post
  16. A50 stock base file-2012

    Started by Kennedy Diesel, September 5th, 2019
    • Replies: 2
    • Views: 2,371
    September 11th, 2019 Go to last post
  17. AL5 Allison adaptive cells

    Started by Rthms20, September 3rd, 2019
    • Replies: 0
    • Views: 984
    September 3rd, 2019 Go to last post
  18. 2009 gmc c5500

    Started by chevy052500hd, April 20th, 2019
    • Replies: 0
    • Views: 1,720
    April 20th, 2019 Go to last post
  19. Allison VIN flashing

    Started by MaxPF, February 10th, 2011
    2 Pages
    1 2
    • Replies: 19
    • Views: 8,793
    January 11th, 2019 Go to last post

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