Hey guys. Have any FF (or GTC4 Lusso) owners experienced a "thunk" sound over light to moderate bumps in the rear end? My FF has 10K miles. I have ruled out sway bar links and lower coilover bushings (I disconnected the sway bar links and replaced the worn lower bushing). I am a tech and shop owner so have pretty solid capability on diagnosing but this has evaded me... It is definitely triggered by seems or sudden bumps in the road. Upper strut/coilover mounts look good (and only 10k miles). Almost sounds like could be coming from right wheel well or rear trunk area. Has anyone had this issue or resolved a similar problem on their car? I almost can't hear it with the stereo playing much at all but with it off, it can drive me nuts! Thanks!