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There should be a diagram stuck to the roof of the box.
And you didn't say what year, so we dunno...
....BUT....the MUCH easier way would be to just disconnect the intertia switch located at the very front of the passenger footwell...by doing so it will cut all power to the fuel pump.
Lay in your passenger footwell, pull the front carpet back justa little bit, and you can see it. It's a grey or black box with a big red button at the top and two wires coming out the bottom, screwed into the firewall. Take a screwdriver and unplug it. Voila, fuel pump disconnected.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.