Door stop arm mount

The door stop arm mount is broke on my driver door. I have pic of driver door mount that works fine. You can see part of the mount in the slot in the cab frame. Is there a way to get into the area where the door hinges are located in the body to replace the broken off part? I removed all the bolts thinking the panel would come out. No luck. Am I missing something?

Isn't there a panel on the inside of the cab by your feet? That should give you access to the back side of the door frame. I think someone posted a link somewhere for some door stops that are for a ford, I think, they are almost exactly like ours.

1950. That panel does come off, with the hinges, so you'll probably want to take the door off first. It has been a while since I removed one, but look in the hinge holes. I think there are a couple bolts back in there