Yeah. Mine did this since I drove it off the lot. Definitely not normal. Its becoming irritating to drive. Could it be IN/OUT play in one of the axle shafts? Mine does it big time over small rough roads like an old parking lot. Wife was like "what the heck is that"?.
I never take anything into Ford unless I have a TSB or a light. They dont trouble shoot. They either plug in the IDS or look up a TSB.
Jumping up and down on the bumper does the same noise. My gen 1 and 2 had some shock noise, which was expected from the bypass shocks. This is definitely not that. Sounds like its coming from the passenger rear. Like the axle shaft moving in and out or something.