Carl

When the rudders are on, can you pickup on the bottom of the casting and "wiggle" the whole assembly while its mounted on the gudgeons? If so, throwing some spacer washers over the lower gudgeon between the top of the bottom casting hole and the spring clip. This keeps it from "hopping off" the top gudgeon. Also, as far as the eyebolts are concerned, sometimes they break. Sounds like you might have got got some crappy ones.