2007 4L80E Swap OS problem

I have looked all over HP Tuners tune repository can not find a 4L80E operating system T42 OS 24239036 with ecm E38 OS 12614088. Looked in all 07, 08 & 09 Silverado's, Sieras, Suburban's, Vans and even Escalade hoping to find a OS match with 4L80E. I am at a loss, can anyone help. It is for a 07 Silverado swapped in a 6.2L with 4L80E.

Likely won't find an exact OS match. Just pick a 2007-2008 80E OS and do a write entire with it to your T42 and voila you have a 80E T42.

This is made just for vehicles that do not have a compatible OS available.

https://www.pcmofnc.com/product/pcm-...rsion-harness/