With all of the questions regarding pinion angles and now 2 piece driveshafts, I thought it would be good to write a tech article and have a sticky placed on it. I have explained it numerous times with the help of others but the post gets lost and people don't search for it. So I was looking for diagrams and drawing some of my own when I happened across a pdf file that has diagrams and an excellent explanation. So, I've done my part what I need from someone on here is to figure a way to post this file on here and tell someone from SSM to sticky this bad boy. Here you go guys, hopefully it will help alot of people.
https://www.fleet.ford.com/truckbbas/non-html/Q14.pdf