The link above has two different Part numbers listed for rear motor mount MTX. I think that MB910663 is for ATX. And this is confirmed by http://www.chryslerpartsdirect.com/ I am ordering the part form the dealer and will be able to tell if the 63 is indeed for ATX. The dealer is not able to tell a difference since they don't have a full description of the part.
------------------------------------------------------------------------------------ 98 Stock Talon ESi Mods: New spark Plugs NGK, Fresh ATF, K&N, AGX, UDP and ZipTies tieing the strut towers (according to BlackMagic increases my torsional rigidity) I know spark plugs are not a mod but the car runs so smooth now.