"Tie Down Engineering components make it possible for you to build trailer axles that exactly fit your specifications. By choosing the hub, spindle and axle tube you need and building it yourself, you save money and get a better result. Axle tubes are available in 1500- or 3500-lb. capacities, with corresponding spindles and hubs. Axle tubes are 72in. long and can be cut to the exact length needed for your application. Welding an axle requires the proper equipment and skill needed to apply a proper weld. If you are not comfortable with your welding capabilities, have a qualified welder assemble your axle. Inner Bearing Size in. 1 1/16, Outer Bearing Size in. 1 1/16, Rated Load lbs. 1,350. 2-pc. spindle/flange set Fits 1 1/2in. x 1 1/2in. tube Item# 124991 and either 4-lug hub Item# 128006 or 5-lug hub Item# 128007"