Matt,
Seeing as how you be in Michigan, your first tool to buy is a heated garage. wink
Since we don't know what type of SHO you have, here are some general thoughts on SHO plug and wire changing.
Take your time, reserve a whole day (preferably a day that the auto parts store is open).
Check the wires for the correct resistance before you start to see if you need plug wires also. Can't remember what the range is for satisfactory but each length will be different.
Look in all of the plug wells for oil or water before your plug changing day. The back three are hard to look down into without a mirror and flashlight. If you find ANY liquid, get it out BEFORE you remove the plugs, use paper towel strips to soak it up and then compressed air to get any residual gunk out of there.
I use a spark plug ratchet wrench with a 10" extension and a spark plug socket. Loosen the old spark plug two turns and then hit the well area again with compressed air to blow out any crusties that were clinging on to the plug.
Remove the plug all the way and keep track of which cylinder it came out of for future analysis. Check the factory gap settings on the new Motorcraft AGS 32pp plugs and insert them with the new crush washer that comes with the plug, beveled side up.
Screw into the hole by hand wrench and torque to 12-17 pound*feet (I think).
Check ohms of resistance on each plug wire to see if they need replacing. If one is high, replace them all as the other are ready to fail.
Plug wires and plugs can be replaced without re-moving the intake, but it would be easier to loosen and move or remove some of the things that are in the general area you'll be wrenching in. Some of these things are: the intake manifold runner control and EGR Differential pressure sensor (if you have one) and the drivers side front, and rear intake support brackets.
Good luck, it's not difficult, just complicated, break it down to a lot of simple tasks and you'll do just fine.
Tom
All your polished part are belong to me!
<small>[ February 23, 2004, 07:03 PM: Message edited by: Off Road SHO ]</small>