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Thread: 2022 Cab Chassis 4500

  1. #1
    Junior Member
    Join Date
    Jan 2008

    Default Updated 2021/2022 4500 Cab Chassis

    I have a 2022 4500 Cab Chassis that I’m working on. Truck has already been ECM swapped with a 2021 ECM and tuned. Unfortunately the dash looks like a Christmas tree and sometimes the truck goes into limp mode when towing heavy. I’ve read online that the ECM needs cloned before swapping, but I don’t know if they did that. I’ve also read that the cab chassis are a bit different. Does anyone have any suggestions?
    Last edited by ls2trailblazer; March 10th, 2024 at 02:29 AM.

  2. #2
    Junior Member
    Join Date
    Apr 2020


    Pic of your orignal
    Ecm to se the ecm code

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