Basically a floor jack and jackstands.
Raise the rear of the car with jack, put jackstands under the frame, lower the rearend, there should be enough room to get the springs out. If not you may need to disconnect the shocks to get a little more room. Very easy job, 30 minutes or so.
There are some rubber isolaters on the top side of the springs, sometimes they will stay stuck to the car, sometimes they come out with the spring. Either way, make sure they are in when installing the springs back in.