The suspension system 22 may connect the support structure 20 with a frame or chassis of the vehicle. In addition, the suspension system 22 may dampen vibrations associated with vehicle travel, provide a desired level of ride quality, help control vehicle ride height, or combinations thereof. The suspension system 22 may have any suitable configuration. For instance, the suspension system 22 may be an independent suspension system that may allow wheels to independently move up and down with respect to each other or without influence from another wheel. Alternatively, the suspension system 22 may not be an independent suspension system. The suspension system 22 may include one or more dampeners 36, such as air springs, shock absorbers, or combinations thereof. In the configuration shown, the dampeners 36 are depicted as air springs and a dampener 36 is disposed proximate a distal end of each arm 32 of the support structure 20. A top side of each air spring may be disposed underneath a chassis of the vehicle and may support the chassis.

Referring to FIGS. 1 and 2, an axle assembly 24 may provide torque to a traction wheel assembly. In at least one configuration and as is best shown in FIG. 2, an axle assembly 24 may include a wheel end assembly 60, a transmission housing assembly 62, a transmission 64, and an electric motor module 66.