'04 cc dually 4x4.....for quite a while now, when I would accelerate from a stop, It would feel that my back brakes were grabbing for a second longer than they should...I would feel a very slight.."jerk" today, I would get the jerk, but also would hear a slight..."turkey gobble" noise...LOL..I know I know, but I have no way to explain it!!! anyone had this issue and what was the remedy?? TIA