blt2ski wrote:
That motor as ALL the IHC V8 diesels Ford used, can be had in rigs as high as 35-40K gcwr! Does one really think/feel that this motor will not be able to handle 20K gcwr?!?!?!? Probably do just fine. Even my IDI7.3 has a gcwr in a class 6 of 35K lbs, yet ford only gave it at best a 16 to 18 gcwr!
Just because the engine and transmission were the same doesn't mean that the chassis, suspension, brakes, and axles of an F250 have the same capabilities as those of an F550. Point is: the issue isn't the limits of the motor, it's the limits of the truck as a whole system of components.