Motor Mount I assume you are talking about the top front mount. Simply slide a floor jack with a 2x3 under the oil plan. CAREFULLY raise the engine about an inch. The mount (commonly called a dog-bone) will unbolt and the new one will take it's place. Adujusting the jack with help you get the new mount lined up.
Dogbone says: See the related link below to see with pictures how I changed the lower one with pictures............Dogbone