Patent US 4,129,950

This wheel gauge is for use in obtaining primary measurement data of an unidentified automobile wheel and includes a hub opening indicator, a bolt circle diameter indicator and a rim diameter indicator. The gauge includes a base plate and the hub opening indicator is provided by stepped elements mounted to the base plate and selectively insertable into the hub opening; the bolt circle indicator is provided by a sliding element mounted to the base plate and having a transverse plunger receivable into the bolt openings, and the rim indicator is provided by a movable element mounted to the base plate and movable into engagement with the wheel rim. A modified device includes a plurality of components each having a base including a reduced portion providing a hub opening indicator and an offset portion providing a bolt circle indicator said portions being insertable into the hub and bolt openings respectively. A separate movable portion is slidingly mountable to each base portion and movable into engagement with the wheel rim to provide a wheel rim indicator.