If anyone has a stock file off of this OS 9381344 that would be great. It's a 2000 Silverado 4.8 4l60E, he's a buddy of mine, and he wants to get rid of his crappy Hypertech handheld and we put it back to stock but the truck acts funny, I need a stock file, I think his OS is unrecoverable. I need to do a full write to see if that will fix the problem, but I think his turck was a work truck, or it was bare bones, because it has roll up windows and no power locks, it basically has A/C and that's it.