How do you change the spark plugs on a ford 500?

To change the spark plugs on a Ford 500, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the ignition coil or spark plug wire to access the spark plugs, then use a spark plug socket and ratchet to unscrew the old plugs. Install the new spark plugs by hand to avoid cross-threading, then tighten them to the manufacturer’s specifications. Reattach the ignition coils or spark plug wires and reconnect the battery terminal.