I just posted an issue with this same part. See post 1948 Chevy Truck Vent. See photos in the post. The issue I have is defining the proper angular alignment of the that hinge support. In your case I see that the door channel is missing, I would suggest locally making a part of the channel that is longer than the hinge, weld the new channel portion and then spot weld the hinge onto it. On second thought you you may be able to spot weld the hinge to the new channel and then weld the channel in. By the way I’ve replaced the screws with hex bolts. Also if go to YouTube you can find Carter Auto restyling video but he does the repair on the bench not on installed vent door.
Last edited by TexasA&M48Truck; 04/16/202310:41 PM.