After reading all ov the horror stories about removing plugs from 3V motors, I decided to change mine. I have 38K miles on the clock. I read and re-read the TSB from Ford. Got a new set of Autolite HT plugs, a can of Aerokroil and a bottle of Permatex nickel anti sieze. I went by the TSB instructions, to the letter. Well, I'm screwed. Absolutely went by the letter of the TSB, did everything just as directed and the second plug broke off-in the worst way, the porcelain stayed in the lower part of the plug. I just threw in the towel, called AAA and had the POS trucked to the dealership where I bought it. I am so depressed right now I could just croak. This car only has 38K miles (of course, 2 K past warranty) on the clock and God knows how much it will cost to fix it, and if it will ever be the same. This is the first car I ever ordered from the factory and was my retirement gift to myself. At this point, I doubt I'll ever buy another Ford product. I wish to heaven I had taken it in to the dealer before the warranty expired-but I didn't. If you have a Ford vehicle with the 3V heads, I would trade it before you need new plugs. Good luck to you, brothers.