I have my car at mazda right now getting both the rear shocks replaced and they are also replacing the gear oil as the car was sapposed to be switched to 75w90 at the initial service date. My car has 29k on it and they are covering even the gear oil (cool). Try to talk with them on the shocks because there is a TSB out here for the leaking shock. How many miles do you have on the car? If you are out of the 3/36 might not be as easy.
who told you this?/where does it say that?