The configuration of lug holes on a Chevy Blazer’s wheel hub, dictating the compatibility of wheels, is a critical specification. This measurement, typically expressed in millimeters, indicates the diameter of the circle formed by the lug holes and the number of these holes. For example, a “6×139.7” designation signifies six lug holes situated on a circle with a 139.7mm diameter. This specification is essential for ensuring proper wheel installation.
This dimensional characteristic is vital for vehicle safety and performance. Utilizing wheels with an incorrect configuration can lead to wheel instability, potential damage to the vehicle’s hub and studs, and, in severe cases, wheel detachment. Understanding this measurement also allows owners to explore aftermarket wheel options or replace damaged wheels confidently. Historically, its standardization has facilitated efficient wheel manufacturing and broad interchangeability across vehicle models sharing similar specifications.