Ed,
here is the link to the site.
http://oldgmctrucks.infopop.cc/6/ubb.x?a=cfrm&s=272004236 I believe that you have to register, which is no big deal. Once you are on there, go to the metal shop.
In a nutshell, to get the hinges apart when the pins are seized, cut the pin between the strap and the body, then use some heat and drive the pin from the strap.
Sorry that I took so long to read this post,
Fred
