How do you replace motor mounts on 1989 Cadillac deville?

To replace the motor mounts on a 1989 Cadillac DeVille, start by securing the vehicle on a level surface and lifting it with jack stands. Support the engine with a jack and a wood block, then remove the bolts securing the motor mounts to the engine and frame. Replace the old mounts with new ones, ensuring they are properly aligned, and then reattach the bolts. Finally, double-check all connections and lower the vehicle back to the ground.