This heavy-duty Ford nameplate belonged to the company’s conventional C-series and identified a tandem-axle tractor built for severe commercial work. It appeared in Ford’s heavy-truck model-code listings by the 1971 model year and remained part of Ford’s medium/heavy-duty lineup through the 1980s, where it was positioned above the single-drive C-series variants and alongside other tandem tractor and chassis-cab offerings. The designation reflected Ford’s truck-class naming system rather than a passenger-vehicle style, and it was used on work-focused highway tractors specified for demanding freight and vocational service.
Through its run, the truck evolved with Ford’s changing heavy-truck cab and model structure, but it stayed anchored to the same basic mission: a large-capacity, commercially oriented tandem truck for fleets, contractors, and operators who needed heavier duty than Ford’s smaller straight trucks could provide. By the late 1970s and 1980s, the model continued to appear in Ford’s truck data books as part of the company’s heavy line, even as the commercial range diversified into other series and cab configurations.
The nameplate appears to have ended with the 1990 model year, after which Ford’s heavy-truck lineup moved into the next-generation AeroMax era and related 8000-series derivatives. As a result, this is best understood as an original heavy-truck Ford nameplate with a long, continuous production run from the early 1970s through 1990, remembered as part of Ford’s classic conventional-cab diesel tandem truck family.