The configuration of lug holes on the wheel hub of a 2002 Dodge Ram, organized in a round formation, dictates which wheels are appropriate with the car. This particular association, typically expressed as a numerical worth indicating the variety of lugs and the diameter of the circle they type, is a important measurement. For example, a “5×5.5” designation signifies that the wheel has 5 lug holes positioned on a circle with a diameter of 5.5 inches. This measurement is important for guaranteeing correct wheel set up and car security.
Accurately matching the car’s wheel mounting floor configuration to the wheel is essential for a number of causes. It ensures that the wheel is correctly secured to the hub, stopping wheel detachment and potential accidents. Using the proper specification additionally ensures even distribution of load throughout all lug nuts, minimizing stress and potential injury to the wheel, hub, and associated parts. Understanding this specification permits for correct wheel choice throughout replacements, upgrades, or when putting in aftermarket wheels. Its historic significance lies within the standardized engineering practices employed by automotive producers to make sure interchangeability and security.