Hi there
Notice you are posting on old/inactive thread...no activity for 6yrs on it; just FYI. May want to go to the new user section of forum and do the intro, as it will help you find answers w/o posting, and you'll learn how to post new threads when you can't find answers
. BTW, the consensus on that that thread was worn components were the culprit. They talked about the driveshaft carrier/support bearing, which is possible, but could also be the liquid-filled engine mounts going, going, gone! Look at all the old bits, but remember, everyone forgets to check their motor mounts until it's the last thing left to look at, lol.