1981-1987 GMC Truck Dual-Rectangular Halo H4 Headlight Conversion

This halo-tube conversion is designed for compatible 1981-1987 GMC trucks with factory dual rectangular sealed-beam headlights. It replaces matching sealed units with housings that accept serviceable H4 bulbs.

Exact Vehicle Fitment

• 1981-1987 GMC trucks
• Factory dual rectangular sealed-beam headlight configuration only
• Excludes round, single-headlight and composite-headlight configurations

Confirm the exact truck application, lamp count, dimensions and mounting arrangement before purchase.

Product Style and Components

• Halo-tube accent design
• Rectangular sealed-beam conversion housings
• Replaceable H4 bulbs
• Metal housings with glass lenses
• 12-volt standard H4 connections

Included Components

• Conversion housings for the listed dual-rectangular application
• H4 light bulbs

Installation Notes

Installation generally requires removal of the original sealed-beam units, H4 connections and secure mounting of the new housings. The estimated time is 30-90 minutes. Halo wiring, trimming or connector work can vary by vehicle condition. Test all functions and check headlight aim after installation.

Frequently Asked Questions

Which headlight layout is required?
The confirmed application requires factory dual rectangular sealed-beam headlights.

Will it fit a round-headlight GMC truck?
No. Round-headlight configurations are excluded.

Can the H4 bulbs be replaced separately?
Yes. The conversion housings use replaceable H4 bulbs.

What should I verify before ordering?
Check the model year, truck application, lamp count, dimensions, mounting points and wiring.

Shop Related GMC Lighting

• Shop sealed-beam headlight conversions
• GMC parts and accessories

Aftermarket Product Notice

This is an aftermarket lighting conversion. GMC names are used only to identify compatibility. Verify the factory dual-rectangular sealed-beam configuration before ordering. The buyer is responsible for proper wiring, installation, alignment and applicable lighting compliance.