A hydraulic anti-roll system for a vehicle comprising: a first hydraulic actuator; a second hydraulic actuator; said first hydraulic actuator being adapted to be connected between the suspension and frame of the vehicle on one side and said second hydraulic actuator being adapted to be connected between the suspension and frame of the vehicle on its other side; a first compression line connected between a first compression chamber of said first hydraulic actuator and a second expansion chamber of said second hydraulic actuator; and a second compression line connected between a second compression chamber of said second hydraulic actuator and a first expansion chamber of said first hydraulic actuator; characterized by further comprising: an anti-roll control module connected between said first and second compression lines (13, 15) of said first and second hydraulic actuators (12, 14); said anti-roll control module taking-up and resisting the transfer of fluid from the compression of said first hydraulic actuator and the expansion of said second hydraulic actuator via said first compression line; said anti-roll control module taking-up and resisting the transfer of fluid from the compression of said second hydraulic actuator and the expansion of said first hydraulic actuator via said second compression line; said anti-roll control module comprising: a first accumulating actuator connected to a first mounting flange adapted to take-up and resist the transfer of fluid from said first compression chamber and said second expansion chamber via said first compression line; a second accumulating actuator connected to a second mounting flange adapted to take-up and resist the transfer of fluid from said second compression chamber and said first expansion chamber via said second compression line; said first mounting flange being fixed relative to said second mounting flange; and an anti-roll spring (34, 35) interconnecting said first accumulating actuator with said second accumulating actuator and biasing said first and second accumulating actuators (37, 39) from compressing; and an anti-roll bypass valve adapted to activate and deactivate said anti-roll control module. a first hydraulic actuator; a second hydraulic actuator; said first hydraulic actuator being adapted to be connected between the suspension and frame of the vehicle on one side and said second hydraulic actuator being adapted to be connected between the suspension and frame of the vehicle on its other side; a first compression line connected between a first compression chamber of said first hydraulic actuator and a second expansion chamber of said second hydraulic actuator; and a second compression line connected between a second compression chamber of said second hydraulic actuator and a first expansion chamber of said first hydraulic actuator; an anti-roll control module connected between said first and second compression lines (13, 15) of said first and second hydraulic actuators (12, 14); said anti-roll control module taking-up and resisting the transfer of fluid from the compression of said first hydraulic actuator and the expansion of said second hydraulic actuator via said first compression line; said anti-roll control module taking-up and resisting the transfer of fluid from the compression of said second hydraulic actuator and the expansion of said first hydraulic actuator via said second compression line; said anti-roll control module comprising: a first accumulating actuator connected to a first mounting flange adapted to take-up and resist the transfer of fluid from said first compression chamber and said second expansion chamber via said first compression line; a second accumulating actuator connected to a second mounting flange adapted to take-up and resist the transfer of fluid from said second compression chamber and said first expansion chamber via said second compression line; said first mounting flange being fixed relative to said second mounting flange; and an anti-roll spring (34, 35) interconnecting said first accumulating actuator with said second accumulating actuator and biasing said first and second accumulating actuators (37, 39) from compressing; and a first accumulating actuator connected to a first mounting flange adapted to take-up and resist the transfer of fluid from said first compression chamber and said second expansion chamber via said first compression line; a second accumulating actuator connected to a second mounting flange adapted to take-up and resist the transfer of fluid from said second compression chamber and said first expansion chamber via said second compression line; said first mounting flange being fixed relative to said second mounting flange; and an anti-roll spring (34, 35) interconnecting said first accumulating actuator with said second accumulating actuator and biasing said first and second accumulating actuators (37, 39) from compressing; and an anti-roll bypass valve adapted to activate and deactivate said anti-roll control module.