I quite admire the innovation of the Ford F-Series
The Ford F series is a series of light duty trucks 
When was it designed?
-selling pickup truck in the United States since 1977 and the best-selling vehicle since 1986; it is also the best selling vehicle in Canada. As of the 2018 model year, the F-Series generates $41 billion in annual revenue for Ford, making the brand more valuable than Coca-Cola and Nike.
In 1999, to bridge the gap between its pickup line and its medium-duty trucks, Ford introduced the F-250 and F-350 as Super Duty trucks. Considered an expansion of the F-Series
Series. For 1961, F-800 and above trucks were given their own fascia (with a central slotted grille). 
Fifth generation (1967-1979).
The fifth-generation F-Series was introduced for the 1967 model year, with Ford diverging the design of its light-duty and medium-duty F-Series. To streamline production costs, medium-duty trucks (and bus chassis) retained the cab and hood of light-duty trucks. In place of Twin I-Beam suspension, a