Tail Light Fuel Filler Kit – 73-91 GMC Chevy Squarebody Truck

Our 1973-1991 Squarebody Chevy/GMC Taillight Fuel Filler Kit is the best gas filler relocation kit on the market. If you’re looking for a Taillight Fuel Filler Kit for Squarebody Trucks, this is the solution you need. It has been designed using 3D scan and CAD Design technology to generate an extremely accurate part.

Also, it provides a clean, hidden alternative to putting the gas cap in the bed floor. This tail light fuel filler is the best custom solution to relocate the stock filler for Squarebody Trucks. That is why our Taillight Fuel Filler Kit stands out.

Square Body Tail Light Fuel Filler Installation

Download/Print Fuel Filler Template Here

Taillight wiring will need to be extended. If you're working on Squarebody Trucks and planning to install a Taillight Fuel Filler Kit, note that due to different tank manufacturers a joiner tube is not included. We suggest to source fuel grade line to join filler spout to tank or fabricate a tube with rubber couplers on either end to your tank. **Taillights NOT INCLUDED unless selected**

Our 1973-1991 Squarebody Chevy/GMC Hidden Tail Light Fuel Filler Kit relocation kit features:

• ✅ CNC Laser Cut 18 Gauge Steel
• ✅ Comes laser cut and pre formed for an easy installation. In fact, installation is straightforward for owners of Squarebody Trucks, especially those adding a Taillight Fuel Filler Kit.
• ✅ CAN be used with LED taillights or use stock GM lights (Not LMC aftermarket lights)
• ✅ Comes with the sides tacked in place as shown
• ✅ Assembly is uncoated steel and can be painted or powder coated for a color of your choice.
• ✅ Includes polished 1.5" Stainless steel fuel filler
• ✅ Spring loaded hinge system for assisting with closing
• ✅ Laser cut taillight mounting holes.

**Taillight fuel filler kits may not work with fuel nozzles which have vapour sealing device or pressure seals like in California.** The Taillight Fuel Filler Kit for Squarebody Trucks is best used with standard fuel nozzles.

Important Installation Notice:

LS Fabrication does not currently offer a hose or plumbing kit for connecting the tail light fuel filler to the fuel tank. All plumbing design, routing, and installation are the responsibility of the installer. For those outfitting Squarebody Trucks with our Taillight Fuel Filler Kit, please ensure proper routing for safety.

The tail light fuel filler does not provide tank venting. Proper venting must be supplied by the fuel tank itself. Aftermarket fuel tanks should be equipped with an adequate vent system. This helps prevent slow filling, fuel splash-back, or pump shutoff issues during installation. When installing any Taillight Fuel Filler Kit for Squarebody Trucks, this becomes important.

*Optional LED Sequential Tail Light addon features:

This is a direct replacement for your original tail light, and is made to fit square body Chevy trucks. With its modern technology and sleek design, this tail light is sure to turn heads wherever you go! For best results, combine with our Taillight Fuel Filler Kit for Squarebody Trucks.

• ✅ Sequential operation with brake attention feature, and selector switch to turn off if desired.
• ✅ Also, taillights come with a special tail light mounting base plate.
• ✅ Electronics completely sealed in epoxy to resist corrosion and moisture.
• ✅ Includes LED turn signal flasher which is required.
• ✅ Modification required to internal bracket on Suburban models.
• ✅ Easy Installation
• ✅ If you add on the LED Taillights - they are sold as a pair and include a flasher

*Optional Gas Filler Delete addon features:

Our Gas Filler Delete for 1973-78 GM / Chevy Trucks and 1979-87 GM / Chevy Trucks is the replacement panel for your truck that is formed to fit perfectly where the gas filler neck was located. If you are running a Taillight Fuel Filler Kit for Squarebody Trucks, this panel completes the custom look. This piece is intended to be welded in to shave the gas filler hole in the driver side of the cab.

• ✅ Laser cut from 16 gauge steel.
• ✅ Made to be easily installed by the "do it yourself-er".
• ✅ Easy way to give your GM and Chevy Truck a custom look.

Save yourself the time templating, cutting and forming your own. Get this precision fitting piece that is ready to be welded in.

For owners who have installed a Taillight Fuel Filler Kit for Squarebody Trucks, it is convenient.

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