I have a 2006 Mega Cab Diesel and just recently leveled it and put 35's on it. I was looking at programmers and tuners and see that some of them offer options to recalibrate your speedo for oversize tires. I was wondering if it actually resets the speedometer on the dash to correct with larger tires or just displays a corrected speed on a display. Also, does it affect the tripometer/MPG calculator in the overhead console. Thanks!

Ike

 

You will the starscan and go under ABS for speedo, But you may not get a lot to choose from. Thats because dodge want to keep you to factory specs.

 

Good question. I would call Superchips and ask them about that