What front axle came in the 1999 Dodge Ram 3500 4x4 with 5.9 liter motor?

The 1999 Dodge Ram 3500 4x4 with a 5.9L Cummins engine typically used a Dana 80 front axle. However, there's a small chance a different axle might have been installed as a result of aftermarket modifications or rare factory options. The Dana 80 is by far the most common, though.