What kind of spark plugs do you use in a 97 Ford expedition Eddie Bauer rear wheel drive?

A 1997 Ford Expedition Eddie Bauer (rear-wheel drive) typically uses Autolite XP5114 or an equivalent spark plug. However, it's always best to verify this with your owner's manual. The manual will specify the exact recommended plug type and gap. Using the incorrect spark plug can lead to performance issues and engine damage.