I had a post like last week about my brakes and some noise with it. My parking brakes light stays on constantly and I know i need new brake pads soon. Now when I drive i hear like a hissing sound or dragging sound comming from my left rear tire i believe. I also believe that I need new shocks because when I push down that side it bounces like 2 times and then I hear some squeaky noise too. What could be wrong???