BAD vibration in 60 dodge

From: Chris Civic
Email: chriscivic@hotmail.com
Date: December 27, 2001


60 dodge matador. when in any gear but neutral, it vibrates really bad. the entire car shakes like you wouldn't believe. i am suspecting it to be the piece that is in between the back of the tranny and the driveline. anybody know what this piece is? any ideas on what it could be? thanks