The Super Duty Dana 60 is a front axle used commonly in one ton axle conversions on many different Jeep models including the Jeep JK, Jeep JL, Jeep YJ, Jeep TJ and more. You will also see fabricators using the SD60 in tube buggy builds. The Super Duty Dana 60 varies a little with different year models. It is important that you know what year model truck your Super Duty Dana 60 front axle assembly came from. Motobilt offers diff covers for the SD60 along with axle trusses.