Hello all, I drive a 2015 v6 manual transmission mustang. Last year, I took a speed bump really hard and broke my half shafts in the back and had to replace the suspension all around. I did opt for a lowering kit in suspension. Since this has been replaced, it started out small and has progressively gotten worse. When I begin accelerating from a stop, it sounds as if my back driver side tire runs over a rock, just a quick pop. It also has begun doing this if I release the gas pedal to slow down, for example for a speed bump, it will make the noise when I begin to press the gas pedal again. Any advice would be appreciated. Nothing seems loose or broken. Thanks in advance

 

There is something not as tight as it should be.
It will require a very thorough examination to see just what may be loose. It does not have to be dangling loose just not tight.