01 Dodge Ram, the tires were to short, thus making the speedo read incorrectly. Assuming the computer was not programmed for the shorter (hiedth) tires, would the tires make the truck have more miles then it should or less miles then it should?

 

I assume that you mean that the Tires are smaller in diameter than originally supplied.

The speed displayed on the Speedometer would be Faster than the actual speed.

The Odometer would show More miles traveled than actually traveled.