It's nothing, you don't need a tutorial. The top is four studs coming up through the a-arm. If the bolts are too frozen with gunk, just cut 'em, you've got longer ones in your balljoint kit from 4Crawler. The bottom one is a castle nut - soak it down with PB Blast or whatever, give it a couple beers, then crank the castle nut off. You'll probably want a cheater bar. To get the bottom stud out of the a-arm though you'll want a jaw puller or a BFH, and maybe some flame. Don't even think about using a pickle fork. It will send a pickle fork crying for it's mama.
The first time I did mine, I think was the first time they'd been done ever, the bottom balljoints were seriously frozen in there. I had to use a nutbuster on the castle nuts, and then spent about 3 hours each alternatively torching the hell out of it and beating the snot out of it to get the lower ones free. If you run into trouble, and if your fabricator buddy has air, it might be worth taking the rig and a 12pack to his place and have him put an air hammer on it.
