Worked OK for me.
Here is the link.
Maybe the site was tired at 12:45AM last night and plled the wrong page.
The link you dboyw sent will pull up the 4R100 transmission flush as you said because your link is
"http://superdutydiesel.com/wiki/tiki-read_article.php?
articleId=3" TikiWiki : 4R100 Transmission Fluid Flush
but the hyperlink in the Wiki at the top of the forum is linked to the wrong article. It is linked to the following:
"http://superdutydiesel.com/wiki/tiki-read_article.php?
articleId=49" TikiWiki : Excursion AC Mod
The proper hyperlink is article 3 not article 49. It is still pulling up the wrong article when I go to the website.
It may have been tired at 12:45 am but it must be sleeping in today at 11:07 AM. Since neck surgery 2 weeks ago my nights and days are mixed up so its play on the computer since there is nothing on TV to watch.
PS that won't work for your 2004
That is correct I believe that I have the torqshift transmission so the link incorrectly identifies the 04 as having the 4R100 transmission.
I still think the process would be relatively the same.