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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: 12,838
    May 23rd, 2017 Go to last post
  1. A40 TCM Tuning

    Started by 08lmm72mm, May 2nd, 2020
    • Replies: 2
    • Views: 2,076
    1 Day Ago Go to last post
  2. A50 garbled VIN

    Started by killerbee, 1 Day Ago
    • Replies: 0
    • Views: 34
    1 Day Ago Go to last post
    • Replies: 1
    • Views: 278
    2 Weeks Ago Go to last post
  3. Cool 600 rpm slip limit solved!!!! OS 25941752

    Started by mitchd, May 31st, 2013
    14 Pages
    1 2 3 ... 14
    • Replies: 137
    • Views: 82,238
    November 30th, 2022 Go to last post
  4. A50 replacement

    Started by derkscustomcars, November 1st, 2022
    • Replies: 2
    • Views: 543
    November 6th, 2022 Go to last post
  5. LLY/AL5 No Data Received Error

    Started by TorqueMonster007, August 23rd, 2022
    • Replies: 4
    • Views: 1,030
    September 1st, 2022 Go to last post
  6. Can I flash over a locked AL5

    Started by Moonlight, August 22nd, 2022
    • Replies: 1
    • Views: 652
    August 30th, 2022 Go to last post
    • Replies: 2
    • Views: 644
    August 5th, 2022 Go to last post
    • Replies: 0
    • Views: 562
    July 10th, 2022 Go to last post
  7. 5 to 6 speed conversion

    Started by 02CCSB, September 9th, 2012
    3 Pages
    1 2 3
    • Replies: 25
    • Views: 51,868
    March 23rd, 2022 Go to last post
  8. Locked a50 reflash

    Started by derkscustomcars, February 8th, 2022
    • Replies: 1
    • Views: 954
    February 15th, 2022 Go to last post
  9. 6 speed shift time question

    Started by pinstripebob, November 9th, 2021
    • Replies: 0
    • Views: 787
    November 9th, 2021 Go to last post
  10. Topkick 5sp to 6sp conversion

    Started by Mitco39, July 16th, 2018
    • Replies: 4
    • Views: 3,297
    September 12th, 2021 Go to last post
    • Replies: 1
    • Views: 1,344
    July 26th, 2021 Go to last post
  11. In need of 25821029 stock file

    Started by whistler, May 4th, 2021
    • Replies: 1
    • Views: 1,831
    May 5th, 2021 Go to last post
  12. 2012 LML Stock file request

    Started by whistler, February 19th, 2021
    • Replies: 0
    • Views: 1,976
    February 19th, 2021 Go to last post
  13. A50 Shift Pattern Issues

    Started by jda, May 11th, 2017
    • Replies: 1
    • Views: 3,303
    December 17th, 2020 Go to last post
    • Replies: 1
    • Views: 2,185
    November 15th, 2020 Go to last post
  14. 2005 LLY / AL5 Limp undet wot

    Started by derkscustomcars, July 8th, 2020
    • Replies: 2
    • Views: 2,853
    July 12th, 2020 Go to last post
  15. A40 in a Hummer

    Started by dscholz, June 12th, 2020
    • Replies: 0
    • Views: 2,698
    June 12th, 2020 Go to last post

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