Description:Sun shaft for use with axle shaft that transmits power from differential to final drive of Cat heavy duty equipment.Attributes:• Spur Gear Number of Teeth: 15• External Spline Number of Teeth: 29• Outside Diameter: 54.5 mm (2.145 in)• Overall Length: 219.5 mm (8.64 in)Application:Gear for use in planetary gear sets of final drives. Consult your owner's manual or contact your local Cat Dealer for more information.