more then likely w/ no more info then is provided there is a silver rod on top of the headlight pod you slide to the side then the whole light will come out and you can replace the bulb and reinstall.
If you are asking about the headlight, it's a sealed beam. You will need to get a replacement sealed beam.
To replace: disconnect negative battery terminal just in case not to short anything out....
On my 87 it was really easy. Just open the hood, unplug the bulb behind the head light, then turn counter clockwise to remove the bulb. Reverse it to put a new one in. I did it in about 2...
The bulbs screw in from the rear. If you can't get to the back, take the light assy off of the car.when you open the hood of the car there are two square plastic tabs on either side of the light,...