If I've a friend's truck registered in my name and he was using it to help me with work but has now left the state with the truck, how can I take it out of my name?

If you wish to place the vehicle that you have written about that is in your name currently and into the name of someone else, you need to go down to the local department of motor vehicles where you reside and complete the necessary paper work with that administrative agency taking title of the vehicle from your name to someone else's.