The Stovebolt Site Forums The Parking Lot Panels 'N Burbs Barn Door arm location

Hey Guys,
I have a question.I have a 53 gmc panel and have the little arm that attach to the top of the doors to limit how far they open. I have the holes on the top of the door where they bolt to,but cant seem to find where they bolt to on the body. I know this should be pretty simple,just want to make sure they are in the exact location. Any help is greatly appreciated.

Thanks in advance