Patent ID: 6916038

Claim:
A vehicle suspension system, comprising: a first equalizing beam; a first pair of axle housings each having a lower portion operably connected to opposite ends of the first equalizing beam; a pair of first linkage arms operably connected to an upper portion of each first axle housing and operably connectable with a vehicle frame; a first air cylinder operably connected to the first equalizing beam at a point located between the ends of the first equalizing beam, the first air cylinder operably connectable with the vehicle frame; a second equalizing beam; a second pair of axle housings each having a lower portion operably connected to opposite ends of the second equalizing beam; a pair of second linkage arms operably connected to an upper portion of each of the second axle housings and operably connectable with the vehicle frame; a second air cylinder operably connected to the second beam at a point located between the ends of the second equalizing beam, the second air cylinder operably connectable with the vehicle frame; and a torsional beam extending between the first air cylinder and the second air cylinder, wherein the torsional beam provides the operable connection between the first cylinder and the point of the first equalizing beam located between the ends of the first equalizing beam, and the operable connection between the second cylinder and the point of the second equalizing beam located between the ends of the second equalizing beam.