F-350 / F-450 / F-550 superduty chassis cabs
HIGH-STRENGTH, MILITARY-GRADE, ALUMINUM ALLOY BODY AND HIGH-STRENGTH STEEL FRAME
The Super Duty® Chassis Cab features a cab made of high-strength, military-grade aluminum alloy that's lighter than steel yet incredibly strong. Some of that weight savings was reinvested where it counts the most in a work truck - in stronger axles, beefier suspension components, and a fully boxed under-cab and C-channel aft-of-cab frame built of 95 percent high-strength steel with eight times more torsional stiffness than the previous frame
The Super Duty® Chassis Cab features a cab made of high-strength, military-grade aluminum alloy that's lighter than steel yet incredibly strong. Some of that weight savings was reinvested where it counts the most in a work truck - in stronger axles, beefier suspension components, and a fully boxed under-cab and C-channel aft-of-cab frame built of 95 percent high-strength steel with eight times more torsional stiffness than the previous frame