Abstract: In a hub-piloted wheel mounting assembly, relative movement between a hub and drum, which can cause a wheel and tire to become out of balance, is prevented. The hub has at least one bolt extending from it and the drum has an oversized aperture for receiving the bolt so that an area of space between the bolt and the sides of the aperture is created. A spacing insert having a body with a bore for closely receiving the bolt and which is configured to be closely received within the aperture of the drum is provided to prevent relative movement of the bolt within the aperture. This prevents shifting or slippage of the drum with respect to the hub and keeps the wheel and tire in balance.