WARNING: This page is about a different car, the 2004 Mazda MPV, 2003 Mazda MPV, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Wipe the grease off the ball joint.
Fill the inside of the new dust boot with grease.
Press the dust boot onto the ball joint using the SST.