I received the 2 threaded rod-end bearings from ACS yesterday and proceeded to attach them to the theaded ends of the throttles this morning. I was pleased to find that I had chosen the proper length bearing as they were easily adjustable to allow throttle movement from idle to full power and allow 3/8" of cushion for the throttle control knob off the instrument panel. This will ensure I never find myself in a position where the throttle control knob is fully against the instrument panel with less than full power!
The two rod-end bearings are connected to each other and the engine throttle arm by an AN3-12 bolt. I used a washer on each end of the bolt plus three washers between the two bearings to keep them apart and parallel with each other. I also used a washer between the pilot side rod-end bearing and the throttle arm on the engine. I went through several bolt lengths and washer combinations until I found the one that ensured the best fit all around.
Dual throttle assembly at full power.
Dual throttle assembly at idle.
View from the dual throttle assembly back along the pilot side throttle cable.