The specification denotes a wheel mounting configuration incessantly encountered on heavy-duty autos. The “8” signifies the variety of lug nuts or bolts used to safe the wheel to the car’s hub. The “170” represents the diameter, in millimeters, of the circle upon which these lug nuts are positioned. This dimensional attribute is important for making certain correct wheel set up and protected operation. Some Chevrolet vehicles, significantly these within the heavy-duty vary, might make the most of this configuration.
Right wheel fitment is paramount for car security and efficiency. Using the suitable bolt circle diameter ensures that the wheel is centered accurately on the hub, distributing load evenly and stopping stress on the lug nuts and wheel studs. Historic context signifies that this sample gained prominence as truck producers sought to accommodate heavier payloads and elevated towing capabilities, necessitating extra sturdy wheel mounting options. The implementation of a exact and standardized sample contributes to interchangeability and simplifies wheel choice processes.