Dana 18 Transfer Case Low Gear Sets Advance Adapters Transfer Case Gear Sets; For Use In Dana 18 Transfer Case; Converts From 2.03 To 3.15 Low Range; For Use Only With 4in. Input Bore; For Use With Aftermarket Over Drive Units with Includes Gaskets with Includes Bearings Advance Adapters Advance Adapters Dana 18 Transfer Case Low Gear Sets - 418315OD 418315OD Transfer Case Low Gearset