A disconnecting axle assembly comprising a housing assembly including a first end cap, a second end cap, a sump cover, and a housing member, the housing member defining a central bore, a clutch return passage, and a differential return passage, the first end cap being fixedly coupled to a first side of the housing member such that the first end cap and the housing member define a clutch cavity, the second end cap being fixedly coupled to a second side of the housing member such that the second end cap and the housing member define a differential cavity spaced apart from the clutch cavity, the central bore being disposed about an output axis and extending axially between the clutch cavity and the differential cavity, the sump cover being fixedly coupled to a third side of the housing member such that the sump cover and the housing member define a sump that is spaced apart from the clutch cavity, the differential cavity, and the central bore, the clutch return passage coupling the clutch cavity to the sump in fluid communication, and the differential return passage coupling the differential cavity to the sump in fluid communication; a differential disposed within the differential cavity, the differential including an input member, a first output member, and a second output member, the first output member being supported within the housing assembly for rotation about the output axis and extending axially within the central bore; and a clutch including a plurality of friction plates disposed within the clutch cavity and an actuator, a first set of the friction plates being coupled to the first output member for common rotation about the output axis, a second set of the friction plates being interleaved with the first set and coupled to a third output member for common rotation about the output axis, the actuator including a pump and a piston slidably disposed in a cylinder, the piston being configured to axially compress the friction plates to selectively transmit torque between the first and third output members (112, 152), the pump being coupled to the housing assembly and configured to pump fluid from the sump to the cylinder, characterised in that the sump cover includes a lower pump drawing area and a filter well located in the lower pump drawing area, wherein a filter is received in the filter well and is configured to filter oil as it is drawn from the sump to enter an inlet of the pump, wherein the filter has a generally frusto-conical shape including a base end, a frustum end, and a filter element that is conical in shape and extends between the base end and the frustum end, wherein the filter element is configured to permit oil to flow through while preventing particulates from flowing through, wherein the base end is received in the filter well and can sealingly engage the filter well, wherein the frustum end defines a filter aperture coaxial with the filter well and a pump bore, wherein the filter aperture is arranged to receive the pump inlet, wherein the frustum end is arranged to sealingly engage with the pump such that the pump can draw oil through the filter element and into the pump inlet. a housing assembly including a first end cap, a second end cap, a sump cover, and a housing member, the housing member defining a central bore, a clutch return passage, and a differential return passage, the first end cap being fixedly coupled to a first side of the housing member such that the first end cap and the housing member define a clutch cavity, the second end cap being fixedly coupled to a second side of the housing member such that the second end cap and the housing member define a differential cavity spaced apart from the clutch cavity, the central bore being disposed about an output axis and extending axially between the clutch cavity and the differential cavity, the sump cover being fixedly coupled to a third side of the housing member such that the sump cover and the housing member define a sump that is spaced apart from the clutch cavity, the differential cavity, and the central bore, the clutch return passage coupling the clutch cavity to the sump in fluid communication, and the differential return passage coupling the differential cavity to the sump in fluid communication; a differential disposed within the differential cavity, the differential including an input member, a first output member, and a second output member, the first output member being supported within the housing assembly for rotation about the output axis and extending axially within the central bore; and a clutch including a plurality of friction plates disposed within the clutch cavity and an actuator, a first set of the friction plates being coupled to the first output member for common rotation about the output axis, a second set of the friction plates being interleaved with the first set and coupled to a third output member for common rotation about the output axis, the actuator including a pump and a piston slidably disposed in a cylinder, the piston being configured to axially compress the friction plates to selectively transmit torque between the first and third output members (112, 152), the pump being coupled to the housing assembly and configured to pump fluid from the sump to the cylinder, characterised in that the sump cover includes a lower pump drawing area and a filter well located in the lower pump drawing area,