Have been plagued since the day I picked up the ride. Noticed this metallic rattle on decel. Initially thought license plate....so put some foam weather strip behind and no joy. Well after looking a little further (6000 km's later)I noticed the Park brake spring had walked off the mount slightly just enough to contact the mounting block. Thought I would try this to see. lo and behold, no more rattle. Now to look for a plastic j clip that will grab the first coil and slide under the rest. Just thought I would FYI anybody else that has an unknown sound from the rear of the ride. Hope someone finds this useful.