Coincidentally it was a Ford with a Cummins that I learned the "fummins" thing from, but it was called so cause the dang thing hazes out the stacks even at idle. Someday I'll get around to fixing that, but not any day soon
Is your new truck a 2wd btw? Kinda looks like it is, I see a leaf-sprung monobeam front axle but the beam is too low to line up with the wheel hubs and too narrow to contain axle shafts - so I'm thinking it's kinda like a downsized F-superduty axle?