Hi Im new to this tuner. I have 02 Chevy trailblazer I6 regular. I have 3.42 gear ratios change tires from 245/65/17 to 265/35/22.
Problem is I dont know the drive or the driver sprocket for my trans which is 4l60e. And my Speedo Fine Tuning is all zero. What is the correct calculation? thanks