The 1977 Ford big rig lineup delivered power and versatility for heavy-duty work. The C-Series COE remained a favorite for city deliveries and vocational use, offering a compact design with strong hauling capability. The L-Series Louisville Line provided a tough, reliable option for long-haul trucking and construction, available in multiple configurations to handle everything from regional freight to heavy payloads. For extreme-duty applications, the W-Series COE offered a larger cab and heavier