I would make sure they tranny is serviced with ATF+4 and the computer is flashed with the latest software. I?d also have it scanned for any stored trouble codes and the CVI values (a measure of wear). This may help or the tranny may just be showing its age. I doubt the tranny is the reason for the vibration. I?d suspect a motor mount if it vibrates when stopped and it?s not a misfire or something like that. Mark 90 Imperial ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm