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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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?