So I am new to the tuners and purchased a superchips cortex tuner (brand new tuner) and it came in today. Running a 2008 supercrew fx4 with 35" mud country and 2.5" level kit. I only got a tuner cause my speedo is off 6 mph. So I am gonna configure new tire size and want to adjust shift pressure on the tranny. Manual is very unclear. Any ideas on what shift pressure to put in my tranny? :smoke

 

Try bumping the pressure up 10. This will help firm up the shift. If its not enough you can always add up to 25 percent and then it gets hard.