Hey guys I bought an 1999 F550 6 speed manual with a 16 foot box last year to replace my fallen Fuso. It was an awesome deal, but it has 250k and long wheelbase. I put an L pack on and the dump body from my old Fuso. The body didn't quite fit because the Mitsubishi had a narrower frame. So, it's been sitting for months!!! On the other hand I bought a cab chassis 2004 F350 with 6.0 317k and with one injector, wiper problems, it runs AWESOME!!!! I tried to sell the 550 with no takers as of yet. I looked into chopping the frame down and putting on a 10 foot dump or something but chopping would be about 2k, and with a dump my investment would go up a bit. I know folks are partial to the 7.3 but which truck would you keep realistically? It pains me to see the 550 just sit there. The 6.0's horror stories make me want to put the 7.3 in a time capsule for judgement day.