Everytime when I put it in reserve and turn the wheel to the left it makes a clunk sound ,and when I'm braking at low speed up hills and down it also makes the same sound. Here's an example of how it's sound like.

https://m.youtube.com/watch?v=Qbt-fvQPVEY

 

Hard to say if it's front or rear.
check your bushings in the front, look at compliance. Read could be axle nut TSB reqd