One piece cast hubs complete with pregreased bearings, seals, dust caps, cotter pin and lug nuts. 1/2"-20 Studs.. Inner Bearing Code: L68149, Outer Bearing Code: L44649, Inner Race Code: L68111, Outer Race Code: L44610, Seal Code: 171255UCC. Lug nuts on a 4.5" bolt pattern. Note: The UHI hub uses tapered roller bearing cones and cups. This configuration. requires a minimal amount of end play that is provided at the time of assembly.