Patent ID: 8256782

Claim:
A vehicle suspension assembly comprising: a frame mounting bracket adapted to mount on a frame of a vehicle; a torsion axle pivotally attached to the frame mounting bracket, wherein the torsion axle pivots about a suspension assembly pivot axis, and wherein a torsion axle axis is spaced from the suspension assembly pivot axis; an air spring support arm rigidly attached to the torsion axle; an air spring having at least one convolute, wherein a first end of the air spring is attached at one end to the frame mounting bracket, and wherein a second end of the air spring is attached at an end of the support arm that is opposite the suspension assembly pivot axis; a spindle arm attached to the torsion axle and having a distal end extending in a direction rearward adjacent the air spring; a spindle mounted on and extending outwardly from the distal end of the spindle arm and having a spindle axis, wherein the spindle is adapted for mounting a wheel assembly to the spindle; and a cross-member attachment device attached to the frame mounting bracket, wherein the cross-member attachment device is adapted to receive a cross-member brace extending across a width of a vehicle to an adjacent vehicle suspension assembly, wherein the suspension assembly and the cross-member brace are configured to be attached to the frame of the vehicle by only attaching the frame mounting bracket to the frame of the vehicle and wherein the cross-member device does not contact the frame of the vehicle.