Exactly what I would have said ^ It could be possible when you changed out that mount and if you lowered the engine on that side when replacing the mount or other parts it could have put more stress on the other mounts.. if that mount was bad the others could have been ripped and only cause it to rip more which could give you the vibration.. Id say before going and spending anymore money replacing parts that may not be needed. Take a day and check the mounts, pull them off and see which one is bad or not bad.. it is a shot in the dark with not seeing the issues ourselves instead just information provided over the internet. Good luck and let us know what you find out..