I have a 1972 AA1-A and the trim is hanging up in the threaded part in the tail cone and is making the beveled gears make noise jumping teeth on gears. Is there a service manual that has instructions to repair and re set up the trim??
Have you talked to Dave down in TX at fletchaire? he’s a genius and very approachable for insight, he also has replacement bungies and gears for the entire assembly.