If the engine or gearbox mounts are badly worn then it can allow the engine to move as well as not absorbing any vibration that would otherwise be taken by the mount. In this instance you can see how much the gearbox mount is moving which shows as the gearstick jerks about when driving and releasing your foot off the gas as well as making changing gear difficult at times. This gearbox mount is quite easily accessible so once the part has arrived I'll do another video showing replacement
