I have the Haynes "How to Rebuild Ford Automatic Transmissions" manual. Here's a link:
http://www.haynes.com/na201.html#anchor1054803
It seems to be fairly complete for the basic stock rebuild, and it covers the C3, C4/5, C6 and AOD transmissions. Don't know if there are any specific books geared toward performance rebuilders.
By the way, I found the C4 auto easier to rebuild than a T5 5 speed. It's really not that difficult[img]/phpBB/images/smiles/icon_smile.gif[/img].
<font size=-1>[ This Message was edited by: futuraman on 9/16/03 11:20pm ]</font>