speedometer

Does any one know….can the speedometer be re calibrated or corrected after new tires and wheels installed that are one size up from the original tires/wheel??…Thanks..Steve in Third Lake Ill.

 

yes

 

One size up from stock (example: going from 265/70/16 to 265/75/16) makes your speedometer read correctly. It reads ~3% slow from the factory. However, your odometer will now show a ~3% deficit and this must be accounted for in you mpg calculations. Bonus is that when and if you do sell the vehicle, the odo will show less than actual mileage

That said, if you really want to spend $, look at hyper tech

 

I just installed a hypertech plug and play module on my 12...works well so far