I had no problem connecting the TruTrak servo ring to the elevator push tube.  It attaches around the tube about half way back in the baggage compartment in a protected housing.  I built a small shelf for the servo behind the seat; almost in the center of the aircraft (helps keep CG forward).

 

Jack Dysart

 

 

Does anyone see a problem with mounting an autopilot pitch servo control rod to the main elevator pushrod by using the hardware supplied for the mechanical pitch trim, i.e., a collar clamped to the main pushrod to which the pitch servo pushrod rod end bearing is attached? 

Related question -- I vaguely recall that the STEC intsallation calls for brackets to be pop-riveted to the main elevator pushrod, and the rod end bearing is attached to those brackets.  Is this recollection correct and, if so, does anyone have part number information so I can order up a set from STEC?

Related question -- has anyone who uses the mechanical trim system had the collar slip at all?

- Rob Wolf