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Thread: How do I change a 4wd ECM to run a 2wd truck?

  1. 05-12-2010 #1
    LH6-DOD-54-GMC
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    How do I change a 4wd ECM to run a 2wd truck?

    I'm installing a 2005 E40 Trailblazer ECM that is programmed with a 4wd VIN. How do I change it to run a 2wd transmission in my project vehicle?
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  2. 05-19-2010 #2
    madvette08
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    You will have to find someone with a tech 2 to fast in a 2wd calibration with your vin number.

    Ian
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