2021 Ford® Super Duty® Chassis Cab Truck | Durability Features

2021 Chassis Cab

DURABILITY

DURABILITY OVER THE LONG HAUL.

The Ford Super Duty® is the toughest, hardest-working generation of Class 3–5 chassis cab we've ever built. The Super Duty is the only chassis cab built with a high-strength, military-grade, aluminum alloy that's lighter than steel yet incredibly strong. Add in stronger axles, chassis and steering components, the fully boxed under-cab and a C-channel aft-of-cab frame made of high-strength steel, and you've got hauling and towing capability that you can depend on to deliver during the workday.
Aftermarket equipment shown.
2021 Ford Super Duty Chassis Cab with upfit on site with mountains in background

HIGH-STRENGTH ALUMINUM-ALLOY BODY

The Ford Super Duty® is the only Class 3–5 chassis cab with a high-strength, military-grade, aluminum-alloy body. * It's lighter than steel yet immensely strong. And it's also more dent- and ding-resistant and not subject to red rust corrosion. Beneath this lighter body is a fully boxed under-cab frame and a C-channel aft-of-cab frame built with high-strength steel.

*Class 3–5 Conventional Chassis Cabs.

Aftermarket equipment shown.

2021 Ford Super Duty Chassis Cab with upfit being driven on dirt road at work site

BUILT FORD TOUGH®

Built Ford Tough® isn't just a slogan. It's an attitude that has produced America's premier line of rugged and dependable pickups for 43 straight years. Success at this high level is achieved by never letting up, never allowing the competition to catch up. One example: Super Duty® is the first and only chassis cab in its class with a high-strength, military-grade, aluminum-alloy body and a frame made of high-strength steel. * Super Duty. It's Built Ford Tough.
*Class 3–5 Conventional Chassis Cabs.
2021 Ford Super Duty Chassis Cab brakes

LARGEST BRAKES IN ITS CLASS*

The components of the four-wheel anti-lock brakes in today's generation of F-450/F-550 feature the largest rotors in their class* — and for two important reasons. You want them to provide the sure stopping power you expect when you're out on the job hauling tons of equipment or cargo, and you want them to last, because having to replace brakes too often can be drag on your bottom line.
*Class 3–5 Conventional Chassis Cabs.

ENGINEERED FOR THE EXTREMES

The latest generation of the Ford Super Duty® was subjected to more than 20 million miles of testing, under real and simulated conditions, at temperatures from –20 to 120 degrees Fahrenheit. Powertrain tests replicated going up a six-degree grade over 500 miles. Super Duty was also subjected to four-post frame twists, gravel, dust, water, brine, mud baths and even intentionally tested with worn or broken parts. Such extreme conditions often went far beyond what you would likely encounter on your toughest of jobs.
Aftermarket equipment shown.
2021 Ford Super Duty at Ford testing site being driven through mud