Weird noise on low speeds

[MundaneJury6]

I recently noticed a soft clunk when letting off the throttle at slow speeds on my 2015 Ridgeline. Not sure when it started, when unlocked, I get the noise on a slight hill but when it's locked, no sound at all.Hoping to avoid in bringing this back to the dealer since it can be pricey so I'm here. Any ideas what might be causing it?

 

[DTF]

It's probably a driveline slack or it also might be a worn bushing somewhere in the rear. If it disappears when your Ridgeline is locked, there must be something on the diff or driveshaft components. Check them immediately. Don't waste more time.