Ford has quietly dropped the widetrack monobeam front suspension and extended axle as an option for the 2010 Ford F-350 Super Duty, though it's still the standard setup for the Ford F-450. Demand for the option was lower than Ford expected.
Called "Fat Boy" for short, the Class 4 suspension used a larger and wider axle and stabilizer bar, beefier coil springs, and stronger linkage arms and knuckles that gave the one-ton F-350 more capability than one with the stock Class 3 twin-coil narrow track front suspension. It also shrank the F-350's turning radius to 50 feet, vs. 56 feet for the standard F-350.
Home 
