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Thread: 2019 5.3l 8 speed TCM unlock question

  1. #1
    Potential Tuner
    Join Date
    Oct 2020
    Posts
    1

    2019 5.3l 8 speed TCM unlock question

    Having a difficult time locating the TCM to find the service number to order the correct unlocked version. Anyone able to point me in the right direction or possibly provide me the correct service number so I can order this and get to work on the tune.

    Thanks

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    10,573
    I don't not believe the 2019-2020 T1 trucks have any TCM support.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.