Well I just bought a 2003 ford 550 with 135,000 miles. It does have the infamous 6.0 I bought it because it was 4x4 with a 16.5 foot bed. Ford had replaced the motor under warranty at just over 80,000 miles, and then had new transmission shortly there after. I figured that If necessary I would put in a cummins as the truck meets my other needs. When I got it home it turns out that the egr cooler wasnt replaced when the motor was changed. So since i have the turbo off etc I might as well go ahead and do the oil cooler and high pressure oil pump while I am there.So then I SHOULD be good for another 100 K miles.The cab is tight and over all is in great shape, just gambling to get a few years out of it before any more major repairshope you dont mind the comments. but I saw mark B has about the same thing also.



hope you dont mind the comments. but I saw mark B has about the same thing also.
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. Good when it's loaded of course. Actually I don't think it rides any rougher than any one ton with a solid front axle, I think the 190" wb helps a lot. Good luck with your new ride. I asked a really knowledgable shop foreman at a Ford dealership recently about his take on the 6.0 and he said he has seen a lot of them run with almost no problems for years but that their fuel systems just can't handle any type of bad or gelled fuel without having expensive repairs like injectors. He really stressed keeping your fuel filters changed.














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