Application: fits rear axle with an 8 1/2" diameter, with 8 of the 5/8"studs, commonly found in Peterbilt 1995 and newer trucks and various models and years of Kenworth, Freightliner, International IHC, Ford, Volvo, Mack, and Western Star.
Not sure what size you need? Measure the inside diameter your old hub cap and studs or measure the axle and studs to determine the size needed.
Mount: remove old hub cap, center the hub cap over the axle and push into place or use a hub cap mounting tool. Sometimes they would not quite over the lug nuts, so you will need to turn some of the lug nuts to get a proper fit. Caution: excessive force will dent the hub cap.
