Did this modification to my 53 GMC in 1973. It is an easy modificatin. Template the hinge holes and drill. The hinges have the tapped holes. You will need a set of barn door checks designed for the suburban. You will also need the catches that mount to the header and sill. You will have to remove the cable guide mounts and other hardware, save all of these hard to find parts.
Post some pictures of what needs to be repaired on your door, there are a few custom patches available......g
