well, if you want it to be 4x4 then there is a little more work but not much,
-first off make sure you have a dual sump oil pan, it lets it sit down further to help avoid clearence issues.
-you will either have to modify or remove you heater box if you do not have a 3 inch body lift even if you do, you still might have to nick it a little.
-depending on what year your truck is you will probably have to get an external fuel pump, i am using the summit racing version of the normal holley street pump, i removed my internal fuel pump and installed a hose with a sock clamped on. You will also have to modify the fuel lines in the engine bay, i just cut the flexible one after the hard line and adapted it to a holley.
-you will have to get headers, im using headman ones, there are manifolds that will work but why go searching for them and get less hp.
-you will need an oil flter relocation kit, one that comes out at a 90 degree angle
-you will need brackets for the alternator and powersteering pump, i made my own but there are many out there that work.
-you need to be good with wiring, i took out all of mine then took some of it apart and only reused the ones for non engine related things, and i wired up some new sensors.
-if you want to keep it manual like i did, there arent many options, the best is the m5od-r2 from a 89-91 f150, or im not sure about this but if you can find a jeep t5, you might be able to use the output shaft and tail housing from that on a v8 ford t5, but if you do that you will have to use an external slave cylinder. you will also have to have a custom drive shaft made. you will also have to cut a new hole or extend the hole for the shifter.
-you will have to get a different radiator, the 5.0 and/or 4.0 explorer one will work i think, i used a 4 core aluminum one. you will most likely have to use a pusher electric fan as well, and mount it on the front side of the radiator.
-you can buy engine mounts that are made for this swap, but i have heard many bad things about them, you can use mustange convertible mount and switch them side for side, or what i did was use my 2.9 mounts and make a plate off them, i used 1/4 but 3/8 would be a lot better.
-you might want to think about changing rear ends, and 8.8 is pretty good, but there are always improvements to be made, i have a full width 9in in mine, the tires stick out about 4 inches with my 15x8 but im making fender flare extendions.
there is probably a lot more, but i cant remember, use the search feature it helped a lot for me,