Rear Bellcrank

This is the bellcrank mechanism seen from the rear, where the rudder will go. The pushrod is seen coming from the control sticks. The bellcrank translates its motion into up and down motion to work the elevator, which will be mounted with the stabilizer at the top of the vertical fin. There are supposed to be two washers between the pushrod sides and the bellcrank, but the ones I've tried leave room only for one. Maybe I'm trying the wrong ones, so I'll have to look through the parts bag.