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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: 32
    • Views: 121,565
    November 12th, 2017 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: 71,700
    February 18th, 2015 Go to last post
  3. Sticky Thread Sticky: Torque Converters

    Started by joecar, October 5th, 2010
    • Replies: 0
    • Views: 7,181
    October 5th, 2010 Go to last post
  4. Sticky Thread Sticky: How about a transmission tuning tutorial!

    Started by Redline Motorsports, January 12th, 2006
    15 Pages
    1 2 3 ... 15
    • Replies: 149
    • Views: 97,239
    May 13th, 2018 Go to last post
  5. 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: 45,459
    February 6th, 2017 Go to last post
    • Replies: 2
    • Views: 1,619
    April 24th, 2013 Go to last post
  1. 4L80E Harsh Engagement - TCC Drag

    Started by 02CCSB, July 11th, 2019
    • Replies: 3
    • Views: 270
    July 16th, 2019 Go to last post
    • Replies: 0
    • Views: 1,010
    February 22nd, 2015 Go to last post
  2. Removal of speed limiter

    Started by 06-6.0 SierraHD, April 20th, 2007
    • Replies: 1
    • Views: 1,930
    April 20th, 2007 Go to last post
  3. Need help setting WOT 1-2 shift

    Started by 12secformula, November 15th, 2006
    • Replies: 2
    • Views: 1,492
    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: 1,411
    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: 5,129
    August 31st, 2012 Go to last post
  6. T56 to 80E hurdles

    Started by 1bar, June 8th, 2019
    • Replies: 3
    • Views: 452
    June 9th, 2019 Go to last post
  7. 4L80E swap always in 1st

    Started by 1bar, June 26th, 2019
    • Replies: 3
    • Views: 337
    June 27th, 2019 Go to last post
  8. T56 to 80E first drive

    Started by 1bar, July 5th, 2019
    • Replies: 1
    • Views: 228
    July 6th, 2019 Go to last post
  9. Need 4L80E segment swap wiring schematic

    Started by 1bar, September 20th, 2019
    • Replies: 1
    • Views: 584
    September 29th, 2019 Go to last post
  10. 4L60E, Yank 3600 Stall, 3.42 gears TCC Apply/Release

    Started by 1fastgto, January 26th, 2010
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 14,356
    February 1st, 2010 Go to last post
  11. 2-->1 Downshift while slowing down noise

    Started by 1fastgto, April 26th, 2010
    • Replies: 0
    • Views: 1,560
    April 26th, 2010 Go to last post
    • Replies: 6
    • Views: 3,306
    March 23rd, 2011 Go to last post
    • Replies: 3
    • Views: 3,046
    July 15th, 2007 Go to last post
  12. Torque control parameter

    Started by 2000ssnb, January 19th, 2005
    • Replies: 7
    • Views: 4,153
    January 21st, 2005 Go to last post
  13. 08 Sierra 4l80e t42 issues

    Started by 2007chevy5.3l, September 22nd, 2012
    • Replies: 7
    • Views: 3,221
    September 23rd, 2012 Go to last post
  14. manual gear selection overide 4l80e

    Started by 2500ak, January 5th, 2010
    • Replies: 4
    • Views: 3,994
    January 6th, 2010 Go to last post
  15. Adaptive Shift Times 4l80e + HD2

    Started by 2500ak, January 23rd, 2010
    • Replies: 9
    • Views: 8,648
    January 26th, 2010 Go to last post
  16. TCC Apply Rate

    Started by 2500ak, January 26th, 2010
    • Replies: 5
    • Views: 2,736
    February 13th, 2010 Go to last post

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