Thought of that, Skyman~ but finding lightweight and narrow (52.5") 4x4 axles geared for low-rpm diesels just aren't out there. With the Sami axles I'm committed to running the Sami divorced transfer case as well (offset output shafts)- so noroom for an overdrive to speak of.... The diesel idea's STILL in the back of my mind~ but it's of diminishing practicality....