Everything you need to assemble a live axle to your Go-Kart frame. Works with most axles. Each kit includes: two axle bearings with integral collar, two bearing hangers, four flangettes, four 5/16in.-18 x 3/4in. bolts with Teflon locking nuts, and two large Teflon locking nuts. U.S.A. Mounting holes are on a 3in. bolt circle