You need to get a "Sellers Package" for the truck. They are available from the DOT in Canada. This will show that there are no liens on the vehicle. You will also need to let US customs and Canada customs that you will be presenting a vehicle to them for export, at least 48 hours before you arrive at the border. They will inspect the truck and confirm the serial numbers match the paper work, charge you taxes and you will be given notice to transfer it into your name in your home state.
