Left.4WD. Right.4WD. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Axle Shaft to it's mounting point. A threaded Stud that secures a vehicle's Wheels to the Wheel Hub. Part included in Hub assembly. Part is included in Hub assembly. and Amplifier; bearing. Lug. Drive Axle Shaft. Oil deflector. Washer. Included with: Axle Shaft, Axle Shaft Part cannot be reused/reinstalled, Hub, Hub & bearing, Hub assembly, Hub assembly Part cannot be reused/reinstalled.