How do you change drive belt on a 6.0L ford?

To change the drive belt on a 6.0L Ford engine, first, disconnect the negative battery terminal for safety. Locate the belt tensioner and use a wrench or socket to relieve tension on the belt, allowing you to slide it off the pulleys. Take note of the belt routing or refer to a diagram, then remove the old belt and install the new one in the same configuration. Finally, release the tensioner to apply tension to the new belt and reconnect the battery.