Comparison photos of two black Ford inertia fuel shutoff switche…

Inertia Switches

The old switch ('84~89) was installed on the firewall either just forward of the brake or clutch pedal or just R of the transmission tunnel. The later switch (~'90-up) is always inside the R kick panel just below the glove box. They are functionally identical, and can be swapped by changing the harness connector. But the newer one is slightly more-reliable.

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Owner caption November 2005 · Photo 1060 of 5000