Results 1 to 3 of 3

Thread: 6l80 help!

  1. #1
    Junior Member
    Join Date
    Oct 2017
    Posts
    26

    Default 6l80 help!

    Looking at the tunning files and there is a normal shift , pattern a , and pattern b. What is the difference between the three and what is the A and B?? Then lookin gat the shift pressure folder there is a, a , b and c just wondering what these are im assuming one is maybe tow haul??
    -thanks for the help

  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    You will need to refer to the service manual for your vehicle to see which pattern maps to Normal, A, B.

  3. #3
    Lifetime Member
    Join Date
    Sep 2007
    Posts
    214

    Default

    From what I've been able to gather, normal shift is when the shifter is in D, pattern A is when the shifter is in M, and pattern B is tow/haul on trucks or sport mode in cars. No guarantees this is correct.

Similar Threads

  1. 6l80 Tap Shift
    By koryenger in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 4
    Last Post: February 10th, 2018, 10:14 AM
  2. 6L80 TM removal?
    By SRT10KLLR in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 167
    Last Post: October 23rd, 2012, 05:50 PM
  3. 6l90 to 6l80?
    By VEGASROBBI in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 4
    Last Post: June 16th, 2012, 12:13 PM
  4. 6l80 op24254909
    By tokymon in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 9
    Last Post: May 8th, 2011, 02:47 AM
  5. 6L80/90e's How they work
    By MN C5 in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 49
    Last Post: December 26th, 2008, 12:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •