Its pretty easy to do. Very easy if you don't have rust...
Jack up the vehicle and suspend it on the frame so the front suspension can hang. Pull the tires off.
Disconnect the sway bar links from the axle beams. This will make it easier.
Now put a jack under the RA, right under the spring and jack it up a little so its not pulling down on the spring.
Disconnect the shock from the the lower shock mount (just makes things easier).
Now use a 1 1/16" wrench (I'm 95% sure thats right) and take that big ol nut off at inside the spring, at the bottom. I just use a combo wrench. You don't need to use a socket.
Once that nut is off, see if you can rotate the spring.. The last step is to rotate the spring out of the top of the mount. I usually lower the jack some to make it pull out and rotate at the same time..
It sounds like a lot of steps, but its pretty quick to do.
I can tell you though that if you have rust on that lower spring bolt, your gonna fight it taking it off. I have a wrench I cut the end off of so I could use my high lift jack to get extra force on it.. Worked great at the junk yard when I was pulling the suspension off.
Long wrench with cheater bar by
maniak_az, on Flickr
~Mark