Pitman Arm Steering Pitman Arm Castle Nut Included:No Center Link End Attachment Diameter:14.2 mm; 16.5 mm Color:Black End 1 Attachment Type:Spline End 2 Attachment Type:Tapered Hole Finish:Coated Length:136.5 mm Lubrication Type:Not Applicable Material:Steel Mounting Hardware Included:No Package Contents:Pitman Arm Spline Quantity:36 Steering Shaft Diameter:36 mm