Abstract: An improved vehicle wheel hub mounting system includes a wheel hub, an axle spindle, a bearing assembly, and a threaded fastener. The wheel hub defines an axis and including a generally axially extending body having a bore formed therethrough. The bore of the wheel hub includes an internal splined portion and an inner annular wheel hub surface spaced apart from the internal splined portion. The inner annular wheel hub surface defines a predetermined wheel hub inner diameter. The axle spindle is connected to the wheel hub for rotation therewith and includes a generally axially extending body having an external splined portion and an outer annular axle spindle surface spaced apart from the external splined portion. The external splined portion of the axle spindle matingly receives the internal splined portion of the wheel hub to connect the axle spindle to the wheel hub for rotation therewith.