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Forum: 4speed RWD/FWD Transmission Tuning (incl T42)

4L60E, 4L80E, 4T60E etc transmission tuning, incl T42 TCM.

  1. Need to verify if tune file I downloaded is 4L80E

    Started by Mean Green Z28, January 10th, 2017
    5 Pages •
    1 2 3 ... 5
    23 Attachment(s)
    • Replies: 49
    • Views: 35,379
    Mean Green Z28
    January 21st, 2017 Go to last post

  2. My experience with my 4L80E on T42 swap with

    Started by Mean Green Z28, December 8th, 2016
    1 Attachment(s)
    • Replies: 7
    • Views: 9,620
    Mean Green Z28
    December 13th, 2016 Go to last post

  3. need a 4l80e os12606807 for tranny swap

    Started by thumpdaddy, December 7th, 2016
    • Replies: 0
    • Views: 2,299
    thumpdaddy
    December 7th, 2016 Go to last post

  4. What does a segment swap do?

    Started by Mean Green Z28, December 5th, 2016
    • Replies: 5
    • Views: 6,631
    ScarabEpic22
    December 6th, 2016 Go to last post

  5. Is this possible???? Experts needed for this one

    Started by johnj, November 23rd, 2016
    • Replies: 1
    • Views: 2,868
    joecar
    November 23rd, 2016 Go to last post

  6. TCC lockup temperature

    Started by turbo_bu, October 24th, 2016
    • Replies: 3
    • Views: 3,787
    joecar
    October 24th, 2016 Go to last post

  7. shift point correction

    Started by JCA, October 20th, 2016
    • Replies: 1
    • Views: 2,766
    ScarabEpic22
    October 20th, 2016 Go to last post

  8. 4L80E Line Pressure

    Started by Hambone, September 9th, 2016
    4l80e, line pressure 2 Attachment(s)
    • Replies: 7
    • Views: 18,779
    Hambone
    September 11th, 2016 Go to last post

  9. 4L85E TCC Tuning Help

    Started by jlane330, August 28th, 2016
    3 Pages •
    1 2 3
    10 Attachment(s)
    • Replies: 20
    • Views: 14,954
    joecar
    September 7th, 2016 Go to last post

  10. GMPP LS3 with T42

    Started by LastCall, July 31st, 2016
    • Replies: 5
    • Views: 5,834
    joecar
    September 6th, 2016 Go to last post

  11. How to stop upshift from 1st to 2nd while in 1st gear 2003 silverado 4L60

    Started by mvvette97, July 18th, 2016
    1 Attachment(s)
    • Replies: 2
    • Views: 3,101
    joecar
    July 19th, 2016 Go to last post

  12. Tshift pid

    Started by Savana25004x4, July 15th, 2016
    • Replies: 3
    • Views: 3,927
    joecar
    July 18th, 2016 Go to last post

  13. Downloading Transmission Adaptive Shift Cells

    Started by turbo_bu, March 11th, 2016
    • Replies: 4
    • Views: 4,372
    PSS
    July 16th, 2016 Go to last post

  14. Pwm

    Started by rlane5, July 12th, 2016
    • Replies: 3
    • Views: 3,458
    joecar
    July 13th, 2016 Go to last post

  15. Looking for a T-42 Swap Match!

    Started by MSURacing, June 1st, 2016
    4l60e, 4l65e, e38, swap, t42
    • Replies: 1
    • Views: 4,814
    MSURacing
    June 1st, 2016 Go to last post

  16. Tuned by frost 4L80E conversion harness and T42 compatibility

    Started by Shupe, August 4th, 2013
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 22
    • Views: 20,444
    joecar
    May 23rd, 2016 Go to last post

  17. TCC releasing at crusing speeds with light throttle

    Started by HellKnightHicks, October 8th, 2013
    11 Pages •
    1 2 3 ... 11
    17 Attachment(s)
    • Replies: 108
    • Views: 49,743
    HellKnightHicks
    May 16th, 2016 Go to last post

  18. Commdoore L76 (e38) and 4L80e (T42) issues

    Started by mattyc, March 27th, 2016
    3 Attachment(s)
    • Replies: 7
    • Views: 5,484
    mattyc
    April 3rd, 2016 Go to last post

  19. Scanner- 4l80e Pressure control

    Started by jay_rich, March 25th, 2016
    • Replies: 0
    • Views: 2,277
    jay_rich
    March 25th, 2016 Go to last post

  20. newbie needs some help with an a4 2-3 shift issue!

    Started by outkast, February 27th, 2016
    2 Attachment(s)
    • Replies: 8
    • Views: 5,343
    outkast
    February 29th, 2016 Go to last post
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