Which component is included in the landing gear assembly?

The landing gear assembly primarily consists of components that provide support and stability when a chassis is stationary, especially during loading and unloading. One of the key features of the landing gear assembly is the sand shoe axle, which is essential for the operation of the landing gear. The sand shoe axle helps facilitate the movement of the landing gear legs, allowing them to extend and retract efficiently when needed. This is critical for maintaining the safety and function of the trailer or chassis, providing a stable base.

Other components mentioned, such as brake lights, fifth wheel connectors, and chassis frames, serve different functions in the overall system. Brake lights are safety features that indicate when a vehicle is slowing down or stopping but are not part of the landing gear assembly itself. The fifth wheel connector is a critical component for coupling the trailer to the towing vehicle but does not relate to the landing gear. The chassis frame provides the structural support for the entire vehicle but is distinct from the landing gear assembly. Thus, the sand shoe axle is the correct component associated specifically with the landing gear assembly.