I HAVE A 2006 RMK 600 . wHEN OUT IN THE WOODS THIS WEEKEND I NOTICED MY REAR SUSPENSION SAGGING . mY BUDDY HAS A 2004 VERTICAL EDGE AND WITH NOONE ON THE SEAT HIS SUSPENSION IS FULL EXTENDED UP .MY SUSPENSION IS LIKE HALF EXTENDED . PULL UP ON THE REAR HANDLE AND THE SUSPENSION EXTENDS , SEEMS LIKE HALF COLAPSED . WHAT DO YOU THINK IT COULD BE ? BLOWN SHOCK ? NOTHING LOOKS BROKEN .