Ford says that 90% of Super Duty owners use their trucks for towing. That's why it makes sense that Ford constantly improves the performance capabilities of the Ford F250. For instance, the 2005 Super Duty lineup, which includes the Ford F250, features a variety of enhancements in functionality, capability and convenience. Chief among these is the increased tow ratings which are now pegged at 17,000 pounds. Payload capacity is also improved by 500 to 1,000 pounds for the F250 and the F350.