Samcs777, I think it is because it's a truck, there fore one lock passenger door is all it needs. As above two locks with key is an option. Cars on the other hand are different. With a car you get stuff that a truck doesn't have. You should expect back in 1949 or what every year you have. In other words a truck is just that . Plain Jane and built to haul. Cars have creature comfort.
Jbennett
1940 burb
One lock passenger side