Between 1967 and 1972, Chevrolet produced the 1/2 ton pickup truck with changes to the model every two years. The characteristics of the 1/2 ton truck in 1967 and 1968 were low angle front hoods and large rectangular grille openings. In 1969 and 1970, Chevrolet changed the model to have steep angle hood fronts with bowtie and aluminum grille bar. The 1971 and 1972 version featured a steep angle hood front with no bowtie and an egg-crate grill with bowtie.
Chevrolet's truck line was known as the C/K line starting in 1960. In 1967, the truck underwent major changes through 1972, and this series of trucks became known as the second generation or "action line." Most of the changes in this generation of trucks sought to make the truck more luxurious for passengers. Previously, the truck was marketed solely as a work truck. Between 1967 and 1972, Chevrolet used a coil spring trailing arm with rear suspension, which greatly improved the ride for passengers.
In 1967, the truck featured a small rear window, which was enlarged in subsequent years. After 1968, Chevrolet began to add safety markers to the side and rear of the truck to comply with new traffic laws.