Abstract: A rear axle assembly designed to fit within a predefined rear axle envelope of a transportation vehicle. The rear axle assembly comprising first and second double wheel hubs each supporting a pair of tires, a rear axle offset with respect to a central axis of the rear axle assembly, a rear axle input for receiving a drive input, first and second portal housings which facilitate respectively connecting the rear axle with the first and the second double wheel hubs, a four-point control arm for connecting the rear axle to a chassis, first and second spring carriers each carrying smaller and larger diameter air bellows, first and second longitudinal arms which interconnected the rear axle to the chassis, and first and second shock absorbers each located generally at or adjacent to the central axis and radially between the first double wheel hub and the first spring carrier.

Abstract: A rear axle assembly designed to fit within a predefined rear axle envelope of a transportation vehicle. The rear axle assembly comprising first and second double wheel hubs each supporting a pair of tires, a rear axial offset with respect to a central axis of the rear axle assembly, a rear axle input for receiving a drive input, first and second portal housings which facilitate respectively connecting the rear axial the first and the second double wheel hubs, a four-point control arm for connecting the rear axle to a chassis, first and second spring carriers each carrying a smaller and larger diameter air bellows, first and second longitudinal arms which interconnected the rear axle to the chassis, and first and second shock absorbers each located generally at or adjacent to the central axis and radially between the first double wheel hub and the first spring carrier.