Fluid is defenately ok. I just had the 120K service and it was replaced, yet no change.
When I shift while standing in place car jerks as whell. But I don't think there is a clunk. I did replace a flex disck ( front one ) so its new.

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Dmitry
90' 300CE
17" Intra Signums
Brulen mufler
Euro Headlights/Clear Blinkers
White gouges (made my own)