Where is the fuel cut off switch located on a 1987 ford bronco 2?

There isn't a readily accessible, easily identifiable "fuel cut-off switch" like some larger vehicles or equipment have on a 1987 Ford Bronco II. Fuel shutoff on those vehicles is typically handled through the ignition system. Turning the ignition key to the "off" position is the primary way to stop fuel flow.

There might be an inertia switch (also sometimes called a crash switch), which cuts fuel flow in a collision to prevent fires. This is usually located under the dash, sometimes near the driver's side kick panel or under the carpet. It's often a small, square or rectangular box. However, this is a safety device, not a readily usable shut-off switch.

If you need to completely stop fuel flow for maintenance or other reasons, you'd have to disconnect the fuel pump relay or the fuel pump's electrical connection. This requires working under the hood and disconnecting electrical components, and is potentially hazardous due to fuel system pressure. Exercise extreme caution and refer to your owner's manual before doing so.