13. As you install the supplied Toyota pitman arm, you should make sure the steering box is at its center location. I put the new steering U-joint on the input shaft and turned it all the way one way. Then turn back counting the turns. This was just over four turns. I turned it back just over two turns and, with the front wheels straight, connected the pitman arm to the sector shaft. They are both splined and it fit right together. The new nut was also installed and tightened.