Description:Cat drive train components must endure incredible torque, high impact loads, and frequent direction and gear changes. Cat designs and manufactures its transmissions and final drive components with these demands in mind. The result is a drive train that lasts longer and works harder over the life of the machine. Cat planetary shafts are designed to control the transmissions speed, direction and force for Cat machine operation.Attributes:• Hardened steel planet shaft• Shaft Diameter: 85.026 mm (3.347 in)• Head Diameter: 98.488 mm (3.877 in)• Length: 103.5 mm (4.074 in)• Thread Size: 5/8-11 (2 places)Application:Service component for final drive groups. Consult your owner's manual or contact your local Cat Dealer for more information.