Im sure this has been asked somewhere but i could not find it and Im a noob. If i get larger tires what has to be done to correct the speedo and odometer in an 08 silverado? Can the computer be reprogrammed to correct or do you have to get a third party kit to correct it? IF you need a kit which one is the best? i just got my new 08 silverado 1500 with 20 in rims...but they come with goodyear eagle ls-2 tires...which are just wrong for this truck. Im looking to keep the factory rim and just put a little more agressive,taller tire on.