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Thread: Manual Transmission Swap

  1. #1
    Tuner in Training
    Join Date
    Apr 2020
    Tarrant County, Texas

    Manual Transmission Swap

    I'm on the last length of putting together a trans swap for my 6th gen Monte Carlo, going from the 4t65e, to a 4t80e. While the 4t80e is obviously still a four speed automatic transaxle, I have a standalone controller for it, and will be shifting it manually. Is there really anything I need to do to my tune file? I know I can go and change the trans type drop down from 4t65e to manual, but idk how much that actually changes the way the ECM controls anything. This is on a P04 ECM, and I'll include a random tune file so you can look at what all the parameters I have to work with.
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