When I called the dealer they were like so against the repair being done by myself and also they were against me using any other plugs except motorcraft $10.00 per plug????? He told me the Autolite and Bosh plugs were trash. All of the materials tha I am reading states it can and cant be done without removing the intake manifold on top. The ho to also didnt mention it.I cant even see the rear plugs over this part of the engine. I want to do this myself. If I went to the dealer they wanted close to $500 dollars??????