The 2015 F150 with have 4 gas engine options. Then when you move up to the Super Duty, you only get 2 choices, the 6.2L V8 gasser and the 6.7L V8 Power Stroke diesel.
In 2013 HD 3500 4×2 regular cab Ram pulled ahead of everyone, towing almost 30,000 lbs, now the 2015 Ford F450 can tow 31,200 lbs in a crew cab 4×4. The reason we compare the Ram 3500 to Ford F450, is they both are 14,000 lb. Gross Vehicle Weight trucks rated the same.
To get higher tow ratings, 2015 F-450 has commercial- grade 19.5-inch wheels and tires, (as they did 2008-2010) upgraded rear U-joints, with new leaf springs, new Dana 130 rear axle, front and rear stabilizer bars and shocks. The steering system has stronger gears and linkages and the fifth-wheel/gooseneck has increased towing capacity. 2015 F450 5th Wheel/Gooseneck Hitch Prep package comes with a 2 5/16 in. ball and 3 in. ball for over 30k trailers. Also new in that package is larger safety chain tie downs. The brakes, shared with Super Duty chassis cab models, are larger with new antilock calibration.
On a 5 mile run up a 7% grade at 2765 ft above sea level, the Ford F450 won by about a minute. Then I did it again with another 2015 F450 towing a trailer weighing 2000 lbs more at 29,000 lbs and again I beat the 2014 Ram HD 3500 towing 27,000 lbs. The Ram was the only 2014 trucks at the event as their 2015 isn’t out yet, but no power train changes for 2015.
F-350 Super Duty is available with a high-capacity towing package that includes new front springs and a wide track axle like Ford offered before 2011, increasing towing capacity, to 26,700 pounds, from 23,200 pounds, and the gross combined weight rating goes up to 35,000 pounds.
The second generation 6.7-liter Power Stroke V8 turbo diesel is also designed for the larger F-650 and F-750 medium-duty trucks. 2015 F450 shares some transmission upgrades with the 2016 F-650/750.
F450 pickup truck 2015 tires are rated at 87 mph. the 2014 tires rated 95 mph. Remember you can only tow a 31,200 lb trailer at 87 mph with the 2015 Ford F450!