Aussie, its a specific application for a spark plug that is used only in Ford Triton series engines, they are notorious for breaking plugs off in the head, its a pretty crappy design from the get go. I don't care for the motors at all(mine blew up at 105K). Ford may have not made hte spark plug, but they set the design and spec for it(pretty crappy)
On another Ford repair note(actually navistar) I'm replacing the high pressure oil lines on my van today(7.3 diesel), I got hte replacement lines from the ford dealer, they told me I needed to replace the fittings that screw into teh heads as well, any one done this? Any input?
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