Just some food for thought, check this thread out:

-1) https://www.ford-trucks.com/forums/1...tb-thread.html

If you're still dead set, there is all sorts of info here:

-2) https://www.ford-trucks.com/forums/7...ch-thread.html

And among that thread, you'll find these (among other useful info):

-2a) https://www.ford-trucks.com/forums/8...wap-guide.html

-2b) https://www.ford-trucks.com/forums/7...-write-up.html

...hopefully this helps!