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

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

  1. Sticky Thread Sticky: 4L60E Reference Material

    Started by joecar, January 11th, 2007
    4 Pages
    1 2 3 ... 4
    • Replies: 35
    • Views: 174,322
    November 23rd, 2022 Go to last post
  2. Sticky Thread Sticky: 4L80E Reference Material

    Started by joecar, January 11th, 2007
    3 Pages
    1 2 3
    • Replies: 21
    • Views: 111,499
    February 18th, 2015 Go to last post
  3. Sticky Thread Sticky: Torque Converters

    Started by joecar, October 5th, 2010
    • Replies: 0
    • Views: 14,454
    October 5th, 2010 Go to last post
  4. Sticky Thread Sticky: 4L60E Transmission Torque Reduction during WOT

    Started by recrit, July 11th, 2021
    2 Pages
    1 2
    • Replies: 13
    • Views: 10,772
    August 3rd, 2021 Go to last post
  5. Sticky Thread Sticky: How about a transmission tuning tutorial!

    Started by Redline Motorsports, January 12th, 2006
    16 Pages
    1 2 3 ... 16
    • Replies: 155
    • Views: 223,294
    October 3rd, 2020 Go to last post
  6. Sticky Thread Sticky: Tool to help tune A4 shift points...

    Started by SSpdDmon, August 1st, 2007
    6 Pages
    1 2 3 ... 6
    • Replies: 55
    • Views: 97,601
    February 6th, 2017 Go to last post
    • Replies: 2
    • Views: 3,198
    April 24th, 2013 Go to last post
  1. 4L80E Harsh Engagement - TCC Drag

    Started by 02CCSB, July 11th, 2019
    • Replies: 3
    • Views: 2,673
    July 16th, 2019 Go to last post
    • Replies: 0
    • Views: 2,238
    February 22nd, 2015 Go to last post
  2. Removal of speed limiter

    Started by 06-6.0 SierraHD, April 20th, 2007
    • Replies: 1
    • Views: 3,626
    April 20th, 2007 Go to last post
  3. Need help setting WOT 1-2 shift

    Started by 12secformula, November 15th, 2006
    • Replies: 2
    • Views: 3,042
    November 15th, 2006 Go to last post
  4. 8.1L PCM Controlling 1991 to 93 4L80E

    Started by 1BadAction, January 12th, 2012
    • Replies: 2
    • Views: 3,233
    January 12th, 2012 Go to last post
  5. 3rd Gear TCC locking/unlocking issue

    Started by 1BadAction, August 20th, 2012
    2 Pages
    1 2
    • Replies: 19
    • Views: 11,738
    August 31st, 2012 Go to last post
  6. T56 to 80E hurdles

    Started by 1bar, June 8th, 2019
    • Replies: 3
    • Views: 2,740
    June 9th, 2019 Go to last post
  7. 4L80E swap always in 1st

    Started by 1bar, June 26th, 2019
    • Replies: 3
    • Views: 2,416
    June 27th, 2019 Go to last post
  8. T56 to 80E first drive

    Started by 1bar, July 5th, 2019
    • Replies: 1
    • Views: 2,067
    July 6th, 2019 Go to last post
  9. Need 4L80E segment swap wiring schematic

    Started by 1bar, September 20th, 2019
    • Replies: 1
    • Views: 2,510
    September 29th, 2019 Go to last post
  10. 0411 Segment swap issues 80E

    Started by 1bar, March 29th, 2020
    • Replies: 4
    • Views: 2,885
    April 13th, 2020 Go to last post
  11. 80E Segment swap and ABS not working

    Started by 1bar, May 26th, 2020
    • Replies: 4
    • Views: 4,224
    May 27th, 2020 Go to last post
  12. 4L60E, Yank 3600 Stall, 3.42 gears TCC Apply/Release

    Started by 1fastgto, January 26th, 2010
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 23,503
    February 1st, 2010 Go to last post
  13. 2-->1 Downshift while slowing down noise

    Started by 1fastgto, April 26th, 2010
    • Replies: 0
    • Views: 2,804
    April 26th, 2010 Go to last post
    • Replies: 6
    • Views: 5,910
    March 23rd, 2011 Go to last post
    • Replies: 3
    • Views: 5,502
    July 15th, 2007 Go to last post
  14. Torque control parameter

    Started by 2000ssnb, January 19th, 2005
    • Replies: 7
    • Views: 7,140
    January 21st, 2005 Go to last post
  15. 08 Sierra 4l80e t42 issues

    Started by 2007chevy5.3l, September 22nd, 2012
    • Replies: 7
    • Views: 6,640
    September 23rd, 2012 Go to last post
  16. TCC Apply Rate

    Started by 2500ak, January 26th, 2010
    • Replies: 5
    • Views: 5,123
    February 13th, 2010 Go to last post

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