It's no secret that the factory automatic transmission on the 2004-2007 F250 & F350 6.0L can become a weak point once you bullet proof and stack a ton of horsepower and torque onto your Super Duty. So why not totally replace it with a complete transmission? These complete Super Duty 6.0L Transmissions drop into place of stock and can handle huge levels of horsepower and torque. Ford Super Duty Fitments: 2004, 2005, 2006, 2007 Ford F250 & F350 6.0L Submodel Fitments: FX4, King Ranch, Platinum, Lariat, XLT, XL Some Exceptions apply, please see individual product pages for specific fitments.