Very tight area to work but positioned the roll servo and mount on the rear of the drop down baggage floor. Drilled the holes for it and clecoed it. Positioned the servo rod 90 degrees to the servo arm and marked the hole for the rod end on the end of the torque tube. Marked the servo rod where it needs to be cutoff and did that. Tapped that end of the rod with 1/4 by 32 tap.