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Dana 44HD TTB or Dana 50 TTB front, depending on GVWR. Over 8000 lbs should be the 50.
Ford/Sterling 10.25" rear, manufactured by Visteon (www.visteon.com). It can be full-float or semi-float, depending on GVWR. Semi-float is 5300 lbs GAWR, full-float is 6084 lbs.
TTB = Twin Traction Beam, Ford's fancy name for an independent 4wd frontend.