As for spark plugs, Ford recommended specific plugs at the time, but those may be hard to find now. You'll need to consult a parts store or a reliable online parts catalog (like AutoZone, Advance Auto, or RockAuto) using your VIN to be certain you get the correct plug type and gap specification for your specific engine. They will give you the current equivalent of what was originally specified. Don't just rely on a general "5.4L Triton" search as there were variations.
