Just a follow up, after taking my car to Ford they have ordered a diff replacement under warranty ragarding the noise I was hearing. They carried out inspection, bearing tyre noise (clunk) and using chassis ears diff pinion is noisy.
I also have this problem in my fgx sprint. Very annoying sound, It’s like everyone else’s, sound comes from left rear of car at slow speed on takeoff. And also up and down my driveway. I will be contacting Ford tomorrow to see what they can do.