Description:Shaft for use with circle drive group that provides a method of converting hydraulic power to mechanical power for driving circle on Cat Motor Grader machines.Attributes:• Hardened steel shaft• End 1 External Spline Number of Teeth: 56•End 2 External Spline Number of Teeth: 35• Thread Size: 7/8-12Application:Consult your owner's manual or contact your local Cat Dealer for more information.