I have a 2004 Trailblazer with 3.42 gears. I am in the process of swapping to 4.10 gears, and I'm wondering if anyone can tell me if there is anything I can change with HPT to update the computer?
If not in HPT, any suggestions what needs to be updated? My dealership said nobody there has ever made this kind of change before, so they didn't know what would need done.