the mounts seem to be repos, which is a good thing. NOS parts would probably be deteriorating by now. undo the bolt that holds the mount into the car from underneath the car, then undo the engine mount nut from the top, jack that side of the motor up, slip out, slip new in, and just put it back together. you will want to check your passenger side mount, as they're more susceptable to breaking due to the heat of the exhaust manifold baking it constantly. if ones bad the others probably not fallowing too far behind.