If you are planning on carrying a lot of weight in your Mirage, you may look at putting these on the back;

http://www.rockauto.com/catalog/more...815&cc=1038125


I do not know if these will fit as I need to do some measuring to see. However, putting air shocks on the back would allow you to raise the back suspension back to factory and help the car over all deal with the extra weight. I think I may have to go this route due to the sub box I'm planning on building for the trunk.