2004 Silverado 4l80 Segment Swap... OS 1252063, found file but will not match?

[[email protected].]

Attached is a 2004 Silverado with SD 2 bar and running a Turbo.

OS is 1252063 I found a 2500 4l80 with same os, but would not segment over.

Anyone have a file that will segment with this file attached?

Need 3.7 beta to access the file.

Thanks.

[ScarabEpic22]

Your base OS is 12606960, not 1252063. That's HPT's 2Bar SD enhanced OS #. The OS I see for 04 Silverado 80Es is close to the enhanced OS, but not the same: 12587603

On quick glance I didnt find an 80E with the 12606960 OS, you may need to change OS' if you can't find a file compatible with your OS.

[[email protected].]

I wonder if so switch back to non speed density, do segment, then switch back to SD again...

Strange I didnt need to do that before.

[Bill@HPTuners]

I wonder if so switch back to non speed density, do segment, then switch back to SD again...

Strange I didnt need to do that before.

ScarabEpic22 already kind of alluded to what you need to do, find a file with your operating system 12606960 and do the segment swap. With that said we have ALWAYS recommended doing a segment swap to your STOCK operating system then converting to the custom operating system of your choice.

[mecanicman]

12606960 is a flex fuel operating system and there are no factory 4l80 files to segment swap from. I can segment swap it for you for a fee. PM me if your interested.