In all the pictures of 16's with gullarms fitted and supposedly 21 shocks why is the back jacked up?i offered up a gullarm into my 18 and that too was jacked up but i had left the 18 shock in,so i got a 21 shock but hav'nt fitted it yet but i thought the 21 shock would bring the backend back down,will it?is the 21 shock longer or shorter than the 16/18?