A vehicle suspension system includes: a plurality of wheels; a first primary airbag having a compartment with a volume; a second primary airbag having a compartment with a volume; a first secondary airbag having a compartment with a volume; a second secondary airbag having a compartment with a volume; a first gas line extending in fluid communication between the compartment of the first primary airbag and the compartment of the second secondary airbag; a second gas line extending in fluid communication between the compartment of the second primary airbag and the compartment of the first secondary airbag; and an axle assembly supported by the plurality of wheels for compressing or expanding the airbags as different loads are applied to the wheels to facilitate the transfer of gas between the airbags through the first and second gas lines.