Working on a C5 vette and noticed original file has 3.42:1 gear ratio listed. I now for a fact the physical gear ratio is 3.15:1.
One of my questions is, do I leave what HPT has input in the file or should I correct it? Then if I correct it, what else needs corrected? If I leave it as is, as the vehicle functions as designed now, I assume I can go about my business with trans tune modifications, such as up and down shift speed/rpm changes?