I have been in Fords all my life, am on my second 7.3 IDI, have had several Mustangs, and still have my Grandfathers' last truck, currently my daily driver. Ford screwed up royally when they went away from the 460s and 7.3s, you couldn't give me a new PowerJOKE! And the Duramax just plain will not hold together if worked hard, that and the worst riding truck I ever owned was a Z71 Chevrolet. My Dad has had two Dodge trucks that were both bullet proof and a buddy of mine that is a heavy equipment dealer is on his third with over 1,300,000 on the clock and never been in the engine, actually just put the first set of injectors in it since it left the factory. With the track record I have been seeing my next truck will have a Cummins under the hood.
Joe