Interesting new application for 6.7 Powerstroke

"IF" geared correctly for the tire diam, torque and the rather tall 3.1-1 first gear of the torqueshift, one should still have 30-35% gradability at 35K-40K lbs that this rig could run down the road at. Not sure I would want it on the freeway at 60 mph, might be running some high screaming RPM! 850-1000 lb ft would be better, with a low gear in trans at 3.5 to 4-1 to go with some 5.13 to 6.x-1 gears with those taller tires would be better option in my book!

Marty