The specification denotes a wheel mounting configuration frequently encountered on heavy-duty vehicles. The “8” signifies the number of lug nuts or bolts used to secure the wheel to the vehicle’s hub. The “170” represents the diameter, in millimeters, of the circle upon which these lug nuts are positioned. This dimensional attribute is critical for ensuring proper wheel installation and safe operation. Some Chevrolet trucks, particularly those in the heavy-duty range, may utilize this configuration.
Correct wheel fitment is paramount for vehicle safety and performance. Employing the appropriate bolt circle diameter ensures that the wheel is centered correctly on the hub, distributing load evenly and preventing stress on the lug nuts and wheel studs. Historical context indicates that this pattern gained prominence as truck manufacturers sought to accommodate heavier payloads and increased towing capabilities, necessitating more robust wheel mounting solutions. The implementation of a precise and standardized pattern contributes to interchangeability and simplifies wheel selection processes.
