New motor mounts IN! While it did change the overall feeling of the car while driving (I didn't realize how much of the jerking was just an old car, or some other issue), it feels much more tighter/smoother while starting/driving/movement. It did dampen the "rough idle/bumbly, misfire?" sensation under my drivers/passenger whie idling, but it is still there. Frustrated.As to mount wear; you might have a helper, put the car in gear with the brakes depressed and have them rev the engine., partially releasing the clutch until it grabs, (momentarily), not killing the engine and this in turn, puts a load on all the mounts. As this is being done, you could observe the amount of play; there is in the mounts. In cases where the mounts are severely worn; you can grab the top of the engine and rock it back/forth. It is also the case, the severity if wear; is apparent, until they are removed and you compare between the old and new ones, as shown in the humble mechanic video.