The Ford Super Duty is a line of commercial pickup trucks (over 8,500lb) introduced in 1998 for the 1999 model year. The Super Duty trucks are larger, heavier built commercial/industrial series pickup trucks with heavier-duty body-on-frame steel ladder frames, axles, springs, brakes, transmissions, more powerful engines, and all other heavier/bigger components (with much higher payload and towing capacities).