Ford 13 cab with odd features

[Maurice Donckers]

Doors are very late , there is a pressing in them for attaching a lubrication diagram on one side and a wiring diagram on the other side. Bubble on the bonnet is on all late fords with a frame around the radiator. First bubbles were spotwelded in , later ones were pressed in.

[Grant Bowker]

The rolled reinforcements look like they were arranged to fit around the depression in the door, I agree that makes it look more factory than owner modified. On the other hand, there is nothing inside a normal CMP door that needs access (except the latch that is accessed through a small plate at the top of the door. Is there any chance that the "access covers" are actually the lubrication and wiring diagrams painted over enough times that any profile has been lost?
The pads to mount the standard side screens are still there so I think the window setup is probably an owner modification.
With regard to the frame length, there were 2 lengths of rear overhand made. The shorter version had just enough frame behind the spring hangers to mount the tow hook mountings, the longer was 12 to 14 inched longer. The people fitting the dump bed would likely have have cut the frame just behind the last crossmember (which is in line with the spring hangers) to reduce the overhang, help dump angle and coincidentally reduce stresses in the frame.

[Maurice Donckers]

Yes the plates attached on the doors with 6 screws are the Lubrication/Wiring instruction plates , they are plain alluminium with black printing on.