A differential limiting device (66; 110; 120; 140) for a vehicle, the differential limiting device (66; 110; 120; 140) configured to limit differential rotation of a pair of side gears (56, 58) provided in a differential device, the differential limiting device (66; 110; 120; 140) comprising: a clutch hub (80; 116; 122) coupled to one of a differential case of the differential limiting device (66; 110; 120; 140) and a side gear shaft (44; 124); a clutch drum (78; 114; 126) coupled to the other of the differential case and the side gear shaft (44; 124); a friction clutch (72; 118; 134) including a plurality of frictional engagement elements and a piston (84; 112); an actuator; and a screw mechanism (76; 146) including a screw shaft member (92; 142) and a nut member (90; 144) that are screwed together, wherein the side gear shaft (44, 124) is coupled to the side gear (56, 58), the plurality of frictional engagement elements include first frictional engagement elements and second frictional engagement elements, the first frictional engagement elements are configured to be relatively non-rotatably engaged with the clutch drum (78; 114; 126), the second frictional engagement elements are configured to be relatively non-rotatably engaged with the clutch hub (80; 116; 122), the first frictional engagement elements and the second frictional engagement elements are configured to overlap with each other so as to be in friction contact with each other, the screw mechanism (76; 146) is configured to convert rotary motion of the actuator into linear motion of the nut member (90; 144) in an axial direction of the side gear shaft (44; 124) when a screw member is rotated about an axis of the side gear shaft (44; 124) by the actuator, the screw member is one of the screw shaft member (92; 142) and the nut member (90; 144), the piston (84; 112) is configured to depress the plurality of frictional engagement elements, the piston (84; 142) is configured to rotate relative to the nut member (90; 114) about the axis of the side gear shaft (44; 124), the piston (84; 142) is configured to be unable to move relative to the nut member (90; 114) in the axial direction of the side gear shaft (44; 124), the piston (84; 142) is configured to be unable to rotate relative to a first clutch component about the axis of the side gear shaft (44; 124), the piston (84; 142) is configured to move relative to the first clutch component in the axial direction, characterised in that the piston (4;142) is configured to be relatively non-rotatably engaged with a second clutch component when the piston is moved in a direction opposite to a direction in which the piston depresses the frictional engagement elements, and the first clutch component is one of the clutch hub (80; 116; 122) and the clutch drum (78; 114; 126), and the second clutch component is the other of the clutch hub (80; 116; 122) and the clutch drum (78; 114; 126). a clutch hub (80; 116; 122) coupled to one of a differential case of the differential limiting device (66; 110; 120; 140) and a side gear shaft (44; 124); a clutch drum (78; 114; 126) coupled to the other of the differential case and the side gear shaft (44; 124); a friction clutch (72; 118; 134) including a plurality of frictional engagement elements and a piston (84; 112); an actuator; and a screw mechanism (76; 146) including a screw shaft member (92; 142) and a nut member (90; 144) that are screwed together, wherein the side gear shaft (44, 124) is coupled to the side gear (56, 58), the plurality of frictional engagement elements include first frictional engagement elements and second frictional engagement elements, the first frictional engagement elements are configured to be relatively non-rotatably engaged with the clutch drum (78; 114; 126), the second frictional engagement elements are configured to be relatively non-rotatably engaged with the clutch hub (80; 116; 122), the first frictional engagement elements and the second frictional engagement elements are configured to overlap with each other so as to be in friction contact with each other, the screw mechanism (76; 146) is configured to convert rotary motion of the actuator into linear motion of the nut member (90; 144) in an axial direction of the side gear shaft (44; 124) when a screw member is rotated about an axis of the side gear shaft (44; 124) by the actuator, the screw member is one of the screw shaft member (92; 142) and the nut member (90; 144), the piston (84; 112) is configured to depress the plurality of frictional engagement elements, the piston (84; 142) is configured to rotate relative to the nut member (90; 114) about the axis of the side gear shaft (44; 124), the piston (84; 142) is configured to be unable to move relative to the nut member (90; 114) in the axial direction of the side gear shaft (44; 124), the piston (84; 142) is configured to be unable to rotate relative to a first clutch component about the axis of the side gear shaft (44; 124), the piston (84; 142) is configured to move relative to the first clutch component in the axial direction, characterised in that the piston (4;142) is configured to be relatively non-rotatably engaged with a second clutch component when the piston is moved in a direction opposite to a direction in which the piston depresses the frictional engagement elements, and the first clutch component is one of the clutch hub (80; 116; 122) and the clutch drum (78; 114; 126), and the second clutch component is the other of the clutch hub (80; 116; 122) and the clutch drum (78; 114; 126).