This only happens when on an incline. On a flat surface my car will start to move. In the event of an incline, I think the resistance to forward movement causes something underneath to start to oscillate or clunk. My guess is subframe related..bushings? or diff bushings? Or perhaps the carrier bearing for the drive shaft?
Follow Ups
Any guesses on this clunking sound? - evan_aggie22:13:42 06/09/15