open the hood and look behind the headlight that is burned out. You will see two metal tabs that are sort of like an upside down L shape. Pull them straight up (they might be on pretty snug) and the light will come loose. Pull the light out a bit and that will give you access to the bulbs. Simply unhook the wires going to the bulb, twist out the bulb and replace.
Reassembly is the reverse. Put the light in, line up the pegs on the back of the light with the mounting holes then slip those little L bracket tabs back over the pegs.
2009 Ranger Sport - 4.0L/Auto 3.55 Limited slip. Black. 2500K Nokya fogs, Vanish cover, PreKey Leveling kit and 4 cupholders!
1994 Mustang GT - 5spd
1969 Mercury Cougar -in progress 428 swap! Guessing low 12s?