This site is awesome:
http://www.alldata.com/TSB/86/038601FZ.html

I have two problems so far, relatively minor:

1) Temperature display shows 90's when it should show 40's.

2) /Something/ sizeable is loose inside my dash, and slides all the way across the inside when the truck tilts to the side. I have no idea what it is, but I don't want to take the dash apart to find out, and I don't trust the dealer at all.