Find new and used Ford F-250 Super Duty trucks for sale on RacingJunk.com. The Ford F-250 Super Duty may be the ultimate tow rig. From landscapers to racers, the F-250 Super Duty has proven itself as an elite heavy duty machine. Available with big gas V8s or Powerstroke diesels, the Ford F-250 Super Duty’s high towing capacity means it’s ready to haul anything from construction materials to a championship-level racing machine.