Can someone please point me to a site that has instructions for replacing the serpentine belt on my 2000 Ford 350 - V10 engine?
I am not able to point you to any specific site, but it's easy to replace the belt -- crap being in the way notwithstanding.
There is an idler pulley/tensioner that is spring loaded. Use your 1/2" breaker bar to pivot the tensioner out of the way, and remove the belt. There is a square hole on the tensioner that will take the drive of the breaker bar or ratchet handle. I like to use my breaker bar because the longer handle improves the leverage.
Set the new belt so that the back (outside) of the belt rides on the smooth pulleys and the inside of the belt rides on the grooved pulleys. My '97 F150 has a belt map on a sticker that is under the hood. When you have the belt around all of the pulleys, use the breaker bar again to move the tensioner so you can position the belt under it, then release the tensioner. The spring will provide the proper tension, and no adjustment is needed.
This is an easy job that should be something that most people should be able to handle.
As for stuff that might be in the way, the fan shroud comes to mind. I can take my belt off without too much trouble, but fishing it out around the fan is a bit of a pain.