Considering that the mileage of your truck may exceed the limits of a factory-installed odometer, I'm laughably confused at the requirement. We went back and forth with our insurance company when they asked for a mileage reading on the truck. They have a bunch of young people working there that don't know that the odometer only has five places plus the decimal on these old vehicles. It really confused them when the truck was driven about 5k miles in 5 years.