How do I install the front wheel covers on an Isuzu NPR truck?

The front wheel covers for Isuzu trucks line up with the included curved mounting brackets, not directly with the OEM lug nuts. To install them: place the cover on the wheel to align all 6 vent holes, note which OEM lug nuts align with the brackets, loosen those specific lug nuts about a half turn, slide the brackets into the groove at the base of the lug nuts, and then tighten the lug nuts back down.