How to calibrate the speedometer?
I'm seriously considering upsizing my tires by about 1" diameter, from 33" to 34". I would like to fix the speedo and shift points to accommodate the new size with as little expense and trouble as po...
Forum Discussion
Yes, depends on what tires on the truck OE. I’ve had numerous work trucks that always come with the smaller tire options. Speedos consistently read a bit fast. Up the size to around the “optional” bigger OE sizes and speedo is right on. I wouldn’t even dink with 1-2” tire diameter adjustments and if the early shifting is an issue hit the t/h button.
JMO
JMO
