5 studs 4.5" bolt circle using L44643 inner and outer bearings. Contains TruRyde inner bearing, outer bearing, seal, grease cap and lug nuts. Fits a BT8 Spindle (1" OD) - Will not work on 1 1/16" spindle or some marine trailer axles. TruRyde hubs are pre-raced & all studs are 1/2"-20 with yellow finished zinc plating. TruRyde parts are manufactured to automotive standard in ISO/TS-16949 registered factory.
