Quote Originally Posted by DURAtotheMAX View Post
Why not just start with the correct base file? (2wd or 4wd)

Because this PCM came from a 04 GTO Blue/ Green PCM, but cable throttle, i couldnt find any stock tune with the same OS to segment swap the trans part.. this is an LS6 engine with some mods like cam and other parts, as this PCM was already tuned for the engine.. maybe i was able to start with another PCM like blue/red with a 4x4 silverado base tune, but i already have the license on the GTO pcm, and it was already tuned for that engine.. But if you think is beter to start with a 4x4 silverado tune and start tuning the engine from scratch i will do it, or you think is better copy paste all the LS6 tables to the silverado tables? if you think is better ill do it, really, just want to do the things right,