3,500 lb Idler Trailer Axle Running Gear ( Idler Axle W/ Hubs, Bearings, Lugs & Nuts, Springs, U-bolt Kit, Hanger kit. (73" Hubface, 58" Spring Center) Rockwell American 3,500 lb Idler Axle - Running Gear Set - Made in the USA This Axle Kit Includes: (1) 3,500 lb Idler Axle w/ Hubs, Bearings, Lugs & Nuts (2 Year MFG Warranty), (2) Leaf Springs, (1) U-Bolt Kit, (1) Hanger Kit, (1) 32 oz Johnson Trailer Parts Insulated Mug This Axle Comes with a Superior Powder Coated Finish and Posi-Lube Spindles that Provide Continuous Bearing Protection 5 Lug on 4.5 Bolt Pattern (other bolt patterns available - Contact Johnson Trailer Parts) Replaces Dexter, Al-Ko & TK Trailer Axles. This Axle Kit is Available in the Sizes Shown in the 3rd Picture, Search "Rockwell American or Johnson Trailer Parts" in Amazon Search Bar for more Trailer Parts