A system designed to transform a standard pickup truck into a vehicle with dual rear wheels, enhancing its load-carrying capacity and stability. For example, installing such a system on a mid-size truck effectively increases its Gross Vehicle Weight Rating (GVWR) and provides greater traction when towing heavy loads.
The modification offers a notable increase in payload capacity and improved handling under heavy loads, making it valuable for individuals and businesses requiring enhanced hauling capabilities from a smaller truck platform. Historically, these systems were developed to bridge the gap between lighter-duty pickups and larger, more expensive commercial vehicles.