bensgraintruck the fresh air door is cable operated the defrost or heat selection is made with the small lever on the front left side. there is only one bracket on the back side that is for mounting purposes as well as a few fasteners that hold it to the side of the cowl.I am in the process of rebuilding mine hope these pisc might help DS
http://good-times.webshots.com/album/556836971jrXSTs