Here is the best summary that I've read on the new SD truck line.
http://www.ford-trucks.com/specs/2008/2008-ford-super-duty.html
http://www.ford-trucks.com/specs/2008/2008-ford-super-duty.html
The new 2008 F-450 pickup widens the capability gap, offering a maximum payload of more than 6,000 pounds and towing capacity of more than 24,000 pounds – a 5,000-pound increase over the class-leading F-350. All of this added capability comes with the same increased level of refinement found in the new F-250 and F-350.
“Customers tell us they want to tow and the F-450 delivers,” said Reyes. “The trailer builders will be writing us thank-you letters because they can sell trailers with granite counter tops and fireplaces. And adding another horse to the trailer is no problem for the F-450 pickup.”
A more powerful 6.4-liter Power Stroke ® Diesel joins a powertrain lineup that already includes the segment’s most powerful gasoline engine, the 362-horsepower 6.8-liter V-10 Triton. The 6.4-liter Power Stroke ® Diesel delivers 350 horsepower at 3,000 rpm and 650 lb.-ft. of torque starting at 2,000 rpm