I have a 98 Ram 1500 that I love except that it has always looked kind of wussy because it had 225/75 R16 tires. Recently while shopping the local trading post paper I saw a guy who had rims + tires that he had taken off of a 96 Ram 1500. The tires are 245/75 R16. They do make the truck look better but they sure do make a lot of noise. Also I realize they will make my speedometer/odometer run at about 90% of what it actually should. Is there a way I can have the speedometer/odometer modified to acurately reflect the true mileage? Any thing else I should look out for? By the way the rims/tires are Kelly/Springfield and they came with the standard rims, have 75-80% of tread left and only cost me $85 for all 4.