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Thread: 2012 5500 need a stock read

  1. #1

    2012 5500 need a stock read

    Have a truck came in on weight loss, trans tuning is bad. Customer wants to know if I can put trans file back to stock, does anyone have a good read I can try? Thanks

  2. #2
    5500 has the Aisin transmission which has no aftermarket support for tuning. Something else is going on.
    2019 CCSB Bighorn - Excited HP Tuners finally supported Cummins CM2350&2450 platforms

  3. #3
    Senior Tuner Jim P's Avatar
    Join Date
    Jan 2018
    Agreed, although torque manipulation on the engine side can affect how the Aisin reacts.