Try this Tread: https://forums.off-road.com/jeep-shor...-troubles.html
for some good links. And this link on POR Pirate4x4.com - The largest off roading website in the world.
That said, I am going to try to talk you out of this, If it still seems like a good Idea then Go for it. If you secced you will learn a lot, however this is not for the faint of heart, there is a lot to this.
I have Done a lot of wrenching. Multiple, Carberator Rebuilds, Transmission Fixing's, and been deeply involved in several Engine Rebuilds. Not to mention Lots of Milling Machine and Lathe work holding dimensions to the 1/1000 of an inch. I was very familiar with accurate measuring tools as a result of the Machining and Engine rebuilds. I thought all this had prepared me to do Gear Swaps. I was Nearly wrong.
In the end I managed to get the gears done correctly, but It took much longer then expected and I nearly gave up once or twice. Again this is not for the inexperienced.
If this still seems like a good idea read the links in the post above, several times. Learn all the terms for the parts of the gears. This will help you ask questions here if things go wrong. It is very hard to answer questions about gears if the asker is making up there own terms as they go along. Using standard terms helps a lot.
At minimum you will need $150 dollars in tools above and beyond a well equipped tool kit. Read the links mentioned to figure out exactly what you need.
You will also need a clean place to work, where you can take your time. And this many take a lot of time. It will likely be necessary to do your first axle over several days. My first took about 20 hours, just to install the gears. The second Took about 10. On both I encountered unexpected problems that with luck will not happen to you. Given what I have learned if everything went well it would take me at least 5 hours from the time the axle shafts were out and the cover came off till it went back one and the shafts could go in.
I would also advise a good steady assistant to provide encouragement and support. This good gets very stressful the first time though and I would not will to try it alone on my first try. I know I would likely have failed with out My buddy there to help.
Unless you have a lift that will let you work comfortably while standing under the Jeep, and you can leave the jeep on the lift indefinitely, I would recommend removing the axle. To do the actual set up on a Large work bench.
There are many tricks I have learn for this job but until you have some more background knowledge they will not mean much.
Again, I do not recommend a you do this yourself unless you have experiance in precision measuring, and lots of time doing successful wrenching on parts requiring careful attention to detail, IE Carberator, Engine and Transmission rebuilds.
Let use Know what you decide to do.