Some of the differences between the years

In 1951 the trucks were given vent windows and the drivers side cowl vent was eliminated. Do both of your doors have flip down handles? If so, these are 1951 (with vent window) and 1947/1950 (without vent window) If it has push button door handles they are from 1952-1955.

What does the tag read on the drivers side door pillar? Put the information in HERE to identify what year you have.