4l80e segment swap

[PeteZ]

If im correct I need the 2.25 beta to do a segment swap for the 4l80e, and from what i read is that i need to flash the ecm with a tech2 to update the OS
2000 silverado 6.0 swap and now doing the 4l80e can anyone confirm my theory according to my log file.

[wildbill040]

I just completed a 4L60 to 80 swap in my 04 Gto. I got 2.25 from HP and did the segment swap. Write entire, then open your 2.24 and read entire. You can tune as usual from there. Be sure to calibrate the speedo. That's what I'm doing now. You'll need to do it in 2.25

[Markmx6]

You may not need to update the OS, you just need to pull the segment from a file with the same OS number.