There should be a short tube that sticks out from the control head. Roughly 3" long for fixed steering wheel; 8 or 9" if you have the adjustable wheel. The inside of that tube has the nubs that engage the slot in the stator tube. http://i258.photobucket.com/albums/hh260/TR3driver/Control%20Head/DSCF0071.jpg~original -- Randall