FULLY BOXED HIGH-STRENGTH STEEL FRAME
The fully boxed frame, built of 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.*
*Max.payload rating of 7,850 lbs. available on F-350, Regular Cab 4x2, 6.2L gas. Max available gooseneck tow rating on F-450, Regular Cab, 4x2. Class is Full-Size Pickups over 8,500 lbs. GVWR.