I have a 96 gtx and when just idling around somewhere in the drive there is a clanking kind noise. When you give throttle it goes away. Could this be wear ring or where the drive line connects to the engine?
They all clank when out of the water or at very low idle apparently (horrible noise I know) you can get a spring kit to stop it but most people don’t worry so I am told. Mine clanks as discribed and always has.