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Thread: 4l80e segment swap

  1. #1
    Tuner in Training
    Join Date
    Nov 2012
    Posts
    26

    4l80e segment swap

    Im doing a 2000 Silverado 4l60e to 4l80e from what i been reading is that i need a segment swap the current OS# is 12205612, do i need to flash this ecm using tech2 to update the OS? and then do a segment swap using 2.25 beta?
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