[rotorwrench]

Still learning about these old Fords. Ford Motor Co had one hell of a big Complex for making, rolling, and forming steel parts so I am not too surprised that they might have different thickness frame rails. It must have been even more complex than I had originally thought. I imagine the guys building up the vehicles on the line had to pay attention pretty close as to what was coming down to them. They must have had travel papers or some significant way of knowing what part was meant for what build for the next pile of parts coming down the assembly line. If commercials had their own assembly line then that would make things easier for them. If they mixed & matched it would certainly keep folks jumping to check stuff out.

The 1941 commercial pickup started out with the same frame as the 1940 but quickly changed over to the universal type frame when the G model 6 came down the line. The later frames make the pickups set higher than the first batch did but will fit either motor.