Building a 6.7L Cummins Pro Mod Race Truck - Driver Profile. Ben Shadday owner of Done Right Diesel Performance of Osgood, IN, Ben Shadday is about as cool & down to earth kind of a guy as you can find, but one thing he gets fired up about is drag racing diesel trucks. Check out his has been working in the diesel performance industry for years. He drives his 2006 single cab 6.7L Cummins Freedom Racing Engine and sees what it takes to build a top of the line competitive diesel truck along with all of his sponsors like Amsoil, Fleece Performance, S&S Motorsports, Suncoast Performance, etc.