Pitman Arm Steering Pitman Arm Castle Nut Included:No Center Link End Attachment Diameter:14 mm; 16 mm Center Link End Attachment Pitch:Not Applicable Color:Black End 1 Attachment Type:Mounting Hole End 2 Attachment Type:Spline Finish:Coated Length:137.7 mm Lubrication Type:Not Applicable Material:Steel Mounting Hardware Included:No Package Contents:Pitman Arm Spline Quantity:32 Steering Shaft Diameter:28 mm