Just got back from dealer for another follow-up. The bushing around the bolt to the rear subframe broke allowing flex and clank noise when shifting between D and R. New subframe ordered. Deemed not safe to drive. Parts diagram for replacement subframe shows two bolts. Hoping for correct part. I'm in a MKZ loaner.
My takeaway, if you are hearing a clank noise when shifting between R and D, etc. Get it checked. They put it on a lift and said it was flexing "a lot".
Of note, mine starting this noise around 21k.
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