This Ford B-series nameplate belonged to Ford’s medium-duty bus/chassis family rather than the light-duty pickup line. It first appears in Ford truck data books for the 1970 model year under the B600 designation, where it was listed alongside the related B500 and B700 series. Through the 1970s and 1980s, the B600 remained part of Ford’s commercial lineup as a conventional bus-capable medium-duty chassis, used widely for vocational and passenger-duty applications, especially school and shuttle body installations.
By the early 1990s, Ford’s literature still included the B600 within the 600-through-9000-series truck range, showing that the nameplate remained in production into that period. The later Ford medium-duty books that followed shifted emphasis toward the 700-9000 series, indicating that the B600 had been phased out by the mid-1990s. It was part of Ford’s long-running heavy-truck catalog era before the company’s medium-duty naming structure moved on to later F- and Louisville/AeroMax-era products.