Universal tire carrier bolts to all 4" box bumpers and fits 5, 6, and 8 lug Kelsey Hayes-type wheels and Fayette-type travel trailer wheels. Designed to be used as a fold-down carrier. Heavy-duty, powder coated steel construction is impervious to rust and damage. Includes retaining bolt with clevis pin for adjustable applications. Easy, bolt-on construction and installation. Stud Size: 1/2-13. Limited lifetime warranty.