Apply Lubriplate Super FML-2 grease to threads on (Item 2) gland nut. Assemble new (Item 38) o-ring from the repair kit into (Item 11) upper body, securing with the (Item 2) gland nut until it bottoms out. Using a torque wrench with a 2½" crowsfoot or 2½" deep socket, torque (Item 2) gland nut to 100 ft. lbs. (135.6 Nm.).