I'm not sure I've seen very many, or any at all, exo'd extended cabs on this board. The design can't be that much different from a standard cab with the exception of an extra bar or two to protect the extended portion of the cab just below the window (starting at the back part of the cab) to a connecting point of the frame or nerf bar just before the door. And its probably not because you're a newbie.......... <IMG SRC="smilies/thefinger.gif" border="0"> but it's a possibility <IMG SRC="smilies/biggrin.gif" border="0">