The 7.3 is a good motor, but I think the flat bed needs to go. We had a 2000 Ford F350 7.3 diesel dually flat bed with a 6 speed manual transmission. It is real easy to get the corners of the flat bed into the front of the trailer in a turn because it is do wide. The regular pickup bed is more narrow at the back.
2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
WBCCI #1811, Region 6, Unit 56