If you do not know what you are doing & you do not have the proper tools, pay some one else to do it & watch them.

It can be a pain to get to your rear mount, depending on the day heh

The way I did my rear mount to install my energy suspension kit was:

Put car on jack stands.
Removed wheels for working space...
Removed Header/exhaust manifold to make life easy.
Removed the 2 19mm bolts for the rear lower mount (under the car)
Removed the 17mm bolt that bolts to the mount its self (upper drivers side)
Removed the 17 or 19mm that bolts into the tranny (upper passenger side)
Removed my two lower mounts (front tranny, ac bracket)

Removed/moved the metal rear mount (L shaped)
Removed the old rear lower mount, installed new one with ES motor mount inserts using LONG extensions on a wrachet

Installed ES motor mounts into my two lower mounts.
etc etc etc...

Sounds like fun huh ?