The rears are the same process as the fronts. Nothing special, except two less pistons but here are the pictures regardless.
1. The two retaining clips have to come out.
2. Push them out to help yourself.
3. Here's what you should have left
4. Just like the fronts, there's a location on the caliper that helps you get the dust boot off. Take both dust boots off.
5. Put a piece off wood in the middle, and use the air gun carefully to get the pistons out.
6. Once the pistons are out a little, take the dust boots off completely.
7. Loosen up the bleeder valves and take both pistons out.
8. Using a small screw driver, take out the seal.