How do you replace the headlight bulb on a 1998 Ford F-150?

Answer 1

Under the hood, behind the headlight itself. grab the bulb housing, and rotate it counter-clockwise. pull straight out to remove. replace bulb and install in reverse order.

On the '97 model this is very difficult to do as there is no room to access the housing. Raise the hood; on top of the ledge above the headlight there are two flat strips of metal with catch slots on them, a tab at a 90 degree angle to the strip; push back and at the same time pull up on the strip and the the entire headlight assembly comes free of the well. THEN follow the above instructions.