FULLY BOXED HIGH-STRENGTH STEEL FRAME
The fully boxed frame, built of over 95 percent high-strength steel with up to 10 crossmembers, is 24 times stiffer than the previous design. The frame is designed to minimize flexing and twisting while maximizing strength and torsional rigidity — and serves as the foundation for Super Duty®
achieving the highest payload and tow ratings in its class.*
*Best-in-class payload when properly configured with 6.2L gas engine. Best-in-class towing when properly configured with 6.7L diesel engine. Class is Full-Size Pickups over 8,500 lbs. GVWR based on Ford segmentation.