I was dreading this job on my 95 D1 for a while until I finally tackled it, and it wasn't actually so bad. This video series was helpful in seeing it (almost) all laid out.
My swivels had some corrosion, with the passenger side being the worst so I tried some JB Weld epoxy as others suggested. It worked for a while with the new seals, but the passenger side starting very slowly seeping again. It's a lot of nuts to remove, but they'll likely come undone easier than you would expect. New seals definitely make a big difference - the driver's side hasn't leaked at all now. There is at least one article on-line about cutting the seal and slipping it over the axle in place. My guess is that could be more frustrating than just taking the thing apart.
I didn't check the shims and/or preload since I didn't want to get into that at this time. Should I have done so? Maybe, but I rolled the dice and have no regrets. I put the one shot grease in since it had new seals, but for the continuous seeping, I found it reasonable to try a suggestion from another forum: Cornhead grease from Central Tractor. It's 00 grease and is about $5 for 32 ounces. While it's not EP rated, it's done a nice job keeping things going for close to 3 years.
It's definitely nice not seeing as much grease in my parking spot now. I still get a dribble, but nothing like before. It's worth it to do it, and it's probably only an afternoon. I took more time since I had to sand the surface and let the epoxy set-up.