Transmission overview Transfer case Three different transfer cases are available for the new Arocs depending on its operating conditions and engine variant. An oil cooler for the transfer case (G4Z) is available as an option. W28.10-1081-00 VG 3000-3W/1.04 (G4E) Transfer case VG 1600-3W/1.42-1.04 (G4C) The transfer case with permanent all-wheel drive is only available for engine OM 936. Max. input torque: 1600 Nm Road step-down ratio: 1.04 Offroad step-down ratio: 1.42 W28.10-1078-00 42 i Introduction of the New Truck Generation - The New Arocs (Model 964) – This printout will not be recorded by the update service. Status: 01 / 2013 –