A vehicle suspension system includes a first trailing arm assembly and a second trailing assembly each including a mounting bracket adapted to be secured to a vehicle frame and a trailing arm member pivotably coupled to the associated mounting bracket and adapted to be operably coupled to an axle member, wherein the trailing arm members each include an aperture extending therein, wherein the aperture has a relatively constant cross-sectional configuration along a depth thereof. The vehicle suspension system further includes a torsional member extending between the first and second trailing arm members and frictionally secured within the apertures thereof, wherein the torsional member has a relatively constant cross-sectional configuration along a length thereof that is received within the apertures of the trailing arms.