Pitman Arm Steering Pitman Arm Castle Nut Included:Yes Center Link End Attachment Diameter:12 mm Center Link End Attachment Pitch:1.25 Color:Gray End 1 Attachment Type:Spline End 2 Attachment Type:Taper Finish:Coated Length:132 mm Lubrication Type:Sealed Material:Steel Mounting Hardware Included:Yes Package Contents:Pitman Arm, Castle Nut, Cotter Pin Spline Quantity:42 Steering Shaft Diameter:25.4 mm