Like Don said, if your truck was titled using the engine number AND you still have the engine in it that it was titled to, you're good to go. If it was titled to the engine and that engine is no longer in the truck or it was titled to the unit serial number you probably have (or will have) some hoops to jump through.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.