Steel brackets bolt to 3" dia. axle tubes. Wider rings are suited to the do-it-yourself chassis fabricator. Grade 5 hardware included with Nyloc nuts. NOTE: Image shows #ALL60145 and is for reference only. Actual product shipped will vary.Pit Stop USA offers Allstar Performance Clamp-On Ring, Retainer - 3" Wide, 4 Bolt Tube ALL60147 at low everyday prices. Be sure to check out all of our products from Allstar Performance including Allstar Performance Tube Clamps.