More pictures will be added. Tired of typing tonight.
This is article is based off a 2003 F150 with 5.4L FX4 and 4R70W transmission.
Note: There are different methods for transmission removal depending on your tools, garage, lifts, etc. These notes are in general and can be used for any removal application.
**Do this on flat ground if you do not have access to a lift of garage..**
If you have 4wd it is always a good idea to lock it in before starting this procedure so both drive-shafts stay in the same location relative to their differential mounting plates.
another jack of any kind
Lift Stands(this can be optional but works when helping support the tranny)
10-18mm open end wrench set. (Use good quality tools)
1/4 ratchet for tight spaces
3/8 ratchet for general purposes and draining transfer case
1/2 ratchet for the support bracket
Assortment of 10-18mm sockets. Deep well will be needed is some cases.
Extensions for all 3 sockets.
Buckets for fluid
Help from friends
1) Ground Terminal
Always remove the Ground terminal/cable from the battery post.
2) Safe working space, blocking tires.
Block all 4 tires up (if not on a lift).
3) Drain your transfer case fluid.
Use a 3/8 ratchet to loosen the drain plug (bottom left one, top is for filling).
4) Drive-shaft removal.
Unbolt the rear drive shaft ( Four - 12mm/ 12point bolts).
Note: A lot of people like to mark the relationship of the drive shaft to the rear differential plate. However, your drive shaft (slip yoke will only go in two different ways: mine did anyways).
Once it is unbolted, pull from the back to (get a partner to help you) so that you can pull it free of the transfer case. Make sure not to mess up the spline's on the inside of the drive shaft housing.
5) Front drive shaft. (4wd)
If you have 4wd you will need to unbolt or remove your frot drive shaft. I chose to leave my transfer case under the truck with a few ratchet straps. Thus I only unbolted the front shaft from the front differential. Again this is four 12mm/12point bolts.
6)Skid plate removal. (4wd)
Now remove the skid plate under the transfer case for easy access. There are four bolts total. 2- 10mm bolts on each side connecting to to the frame.
7) Transfer case removal.
First unhook the transfer-case wire harness. Its a simply push pull type connector.
Your transfer case is mounted to the very back of the transmission with 6 - 13mm bolts. The top two (one on each side can be a hassle to get to with a socket, so take your time). You may need a swivel extension of ratchet to get them off.