I specifically bought my second 2011 4.7L for ease of self maintenance. I changed the plugs on my previous 2005 4.7L. It's pretty easy, as long as you have the correct tools. It's all working on top the engine, just make sure you have anti seize for the plugs, and a spark plug socket that holds the plug in to it. My 2011 has 22K so I'll be doing it on that engine when its time. It's just nuts and bolts mechanics.
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