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

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

    • Replies: 3
    • Views: 1,126
    April 28th, 2019 Go to last post
  1. Question 4l80 swap os numbers needed

    Started by yellogsxr, September 1st, 2018
    • Replies: 4
    • Views: 1,847
    April 24th, 2019 Go to last post
    • Replies: 20
    • Views: 6,425
    March 9th, 2019 Go to last post
  2. 4l80e parameters to prevent TCC from disengaging in 4th gear

    Started by GMCtrk, August 23rd, 2012
    7 Pages
    1 2 3 ... 7
    • Replies: 61
    • Views: 28,849
    March 1st, 2019 Go to last post
  3. 2012 T42 tcm 4l60e to 4l80e

    Started by bubba68ss, February 26th, 2019
    • Replies: 0
    • Views: 732
    February 26th, 2019 Go to last post
  4. 4l80e not shifting out of first

    Started by bubba68ss, February 2nd, 2019
    • Replies: 8
    • Views: 1,823
    February 9th, 2019 Go to last post
  5. Long Shift Times

    Started by Savana25004x4, February 6th, 2019
    • Replies: 4
    • Views: 1,043
    February 9th, 2019 Go to last post
  6. looking for 4l80e stock tune

    Started by steve40, May 6th, 2017
    • Replies: 8
    • Views: 3,421
    September 6th, 2018 Go to last post
  7. Transmission tuning with E38 controller?

    Started by johnsZ06, March 23rd, 2018
    • Replies: 4
    • Views: 2,159
    March 26th, 2018 Go to last post
    • Replies: 24
    • Views: 5,303
    March 22nd, 2018 Go to last post
  8. 4l80e lock up question

    Started by Tinbender59, December 1st, 2017
    • Replies: 5
    • Views: 1,501
    March 20th, 2018 Go to last post
  9. Jakes Performance 4L80E Stage III tuning

    Started by redtacoma31, January 17th, 2018
    • Replies: 3
    • Views: 1,519
    January 19th, 2018 Go to last post
  10. GMPP LS3 (E38) w/ 4L70E in square body 4x4

    Started by TurboCamaro, January 8th, 2018
    2 Pages
    1 2
    • Replies: 10
    • Views: 2,194
    January 11th, 2018 Go to last post
  11. 2004 4l60e not shifting out of first.

    Started by bubba68ss, May 10th, 2017
    • Replies: 4
    • Views: 2,082
    November 30th, 2017 Go to last post
  12. Want to lockup 4L60E in third gear at WOT

    Started by 67SS509, September 26th, 2017
    2 Pages
    1 2
    • Replies: 17
    • Views: 3,363
    September 27th, 2017 Go to last post
  13. 4L80e - ECM commanding D4 shift pattern, without a DTC?

    Started by GunmetalGTA, August 17th, 2017
    2 Pages
    1 2
    • Replies: 12
    • Views: 2,647
    August 21st, 2017 Go to last post
    • Replies: 1
    • Views: 768
    August 17th, 2017 Go to last post
  14. E38 & T42 Compatibility

    Started by Yellow05C6, March 9th, 2017
    • Replies: 2
    • Views: 1,940
    August 5th, 2017 Go to last post
  15. Transfer case ratio

    Started by ctonton, July 23rd, 2017
    2 Pages
    1 2
    • Replies: 10
    • Views: 2,581
    August 2nd, 2017 Go to last post
  16. shifting problem 4l60e

    Started by dian, April 18th, 2017
    2 Pages
    1 2
    • Replies: 19
    • Views: 4,541
    June 14th, 2017 Go to last post

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