Save time and effort replacing Ranger sealed beam lamps-all 1984 - 1992

First make sure replacement bulb is installed in correct position ? some can be installed and will aim light beam hi or low ! most lamp replacements need no adjustments after replacing bulb

If it's a sealed beam light there is a trim ring holding the lamp in. Look for 3 to 4 screws that hold the chrome trim ring on remove the screws and it should fall out.

This is for the sealed beam type. If you have a different type, let me know and I will get those instructions for you.

REMOVAL & INSTALLATION

Sealed Beams
See Figures 1 through 5

CAUTION Most headlight retaining rings and trim bezels have very sharp edges. Wear gloves. Never pry or push on a headlamp; it can shatter suddenly.

1. Make sure the headlight switch is in the off position.
2. Loosen the parking and side turn signal unit retaining screws. Then remove the units unplugging the connectors.

Fig. Fig. 1: After removing the parking lamp screws, push on the grille clips to release the grille from the truck

1. Next, open the hood to gain access to the grille clips. Using a flat-bladded tool, push on the clips to release them and the grille.

Fig. Fig. 2: Remove the grille from the truck and set aside

1. The sealed beam is held in place by a retainer and either 2 or 4 small screws. Identify these screws before applying any tools.DO NOT confuse the small retaining screws with the larger aiming screws. There will be two aiming screws or adjustors for each lamp. (One adjustor controls the up/down motion and the other controls the left/right motion.) Identify the adjustors and avoid them during removal. If they are not disturbed, the new headlamp will be in identical aim to the old one.

Fig. Fig. 3: Remove the headlight bezel which is secured by screws

1. Using a small screwdriver (preferably magnetic) and a pair of taper-nose pliers if necessary, remove the small screws in the headlamp retainer. DON'T drop the screws; they vanish into unknown locations.

Fig. Fig. 4: Be careful when removing the headlight bezels, they can be sharp
A good kitchen or household magnet placed on the shank of the screwdriver will provide enough grip to hold the screw during removal.

1. Remove the retainer and the headlamp may be gently pulled free from its mounts. Detach the connector from the back of the sealed beam unit and remove the unit from the car.

Fig. Fig. 5: Pull the light out, then unplug the wiring harness from behind it

CAUTION The retainers can have very sharp edges. Wear gloves.
To install:

1. Place the new headlamp in position and connect the wiring harness. Remember to install the rubber boot on the back of the new lamp; its a water seal. Make sure the headlight is right-side up.
2. Have an assistant turn on the headlights and check the new lamp for proper function, checking both high and low beams before final assembly.
3. Install the retainer and the small screws that hold it.
4. Reinstall the headlight bezel and/or grille.

1. Make sure the headlight switch is in the off position.
2. Loosen the parking and side turn signal unit retaining screws. Then remove the units unplugging the connectors.
3. Next, open the hood to gain access to the grille clips. Using a flat-bladded tool, push on the clips to release them and the grille.
4. The sealed beam is held in place by a retainer and either 2 or 4 small screws. Identify these screws before applying any tools.DO NOT confuse the small retaining screws with the larger aiming screws. There will be two aiming screws or adjustors for each lamp. (One adjustor controls the up/down motion and the other controls the left/right motion.) Identify the adjustors and avoid them during removal. If they are not disturbed, the new headlamp will be in identical aim to the old one.
5. Using a small screwdriver (preferably magnetic) and a pair of taper-nose pliers if necessary, remove the small screws in the headlamp retainer. DON'T drop the screws; they vanish into unknown locations.


6. Remove the retainer and the headlamp may be gently pulled free from its mounts. Detach the connector from the back of the sealed beam unit and remove the unit from the car.
7. Installation is in the reverse order of removal.

Fig. 1: After removing the parking lamp screws, push on the grille clips to release the grille from the truck



Fig. 2: Remove the grille from the truck and set aside



Fig. 3: Remove the headlight bezel which is secured by screws



Fig. 4: Be careful when removing the headlight bezels, they can be sharp



Fig. 5: Pull the light out, then unplug the wiring harness from behind it

You should be able to replace just the headlight bulb itself, most cars haven't had sealed beam headlights since the '80s. Assuming that's what you mean by "seal beam". Is it the main beam/dip beam, the high beam, or is it a driving light/fog light (usually mounted down low in the bottom of the front bumper area)?