Hidden Fuel Filler Kits – C10, Squarebody, OBS, Ford Trucks

A hidden fuel filler kit relocates the gas cap out of the bed floor or fender and into the taillight housing, so a custom truck loses the last obvious break in its bodywork. Each LS Fabrication kit is an 18-gauge laser-cut steel housing plus a 316 stainless filler neck with a laser-engraved LS logo, flip-up cap and retaining chain, polished to sit alongside chrome trim without looking like an aftermarket add-on.

Fitments

• 1967-⁠72 Chevy and GMC C10 tail light fuel filler — see 67-⁠72 C10 parts
• 1973-⁠91 Chevy and GMC Squarebody tail light fuel filler — see 73-⁠87 Squarebody parts
• 1988-⁠98 Chevy and GMC OBS tail light fuel filler — see 88-⁠98 OBS parts
• 1967-⁠72 Ford truck and 1966-⁠77 Ford Bronco — a no-weld, bolt-in version
• 1967-⁠87 inside box panel fuel filler, for hiding the filler in the bedside instead
• Universal 1.5 inch polished stainless and Easy Fill billet aluminum filler necks for builds outside those years

Read this before ordering

Except for the bolt-in Ford kit, these are not bolt-in parts. The housing welds into the taillight pocket and the taillight wiring has to be extended. Fuel line and plumbing from the filler to the tank are not included. The kits are also not compatible with the vapour-seal pump nozzles used in some states, California among them.

What to do with the old opening

Once the filler moves, the factory fuel door is left empty. Our fuel filler charging ports drop an SAE charge port or a battery kill switch into that hole with no welding.