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I just did mine on my 2006 F250. Mine has a 10.5 inch rear. If yours is the same the only tips I would give you are.
If you don't have a ½ inch air gun you are going to have to really work to get that pinion nut off, and the yoke too.
Before you remove the nut count the number of threads exposed and put the new one back together with the same number of threads exposed.
The Chilton manual says to take a torque wrench and measure the turning resistance of the rear with the calipers removed. Then after you get everything together it should be about the same. Do not over tighten the nut, because they say you will have to throw it out and use a new one if you have to back it off any.
That yoke is a problem to get off. You will need a pretty good puller and an air gun for that too. I used a three prong.
Make sure you install the seal straight. I used a piece of pipe because I didn't have a socket that was large enough.
It really isn't that hard to do, it just takes some time.