This joint had to be fixed on our Aries vane. The boltholes had gone oval over the years resulting in the whole structure moving in a not desired manner. The cure for this was to drill those holes to a larger size and then insert sleeves made of 10 mm hose for hydraulics. After a few hours of tinkering - and a few more of thinking and planning - the result was satisfactory. The joint is very solid now. I also cleaned adn lubricated the moving parts of the vane so it is ready for those lonely long watches it usually takes with no complaints or even demanding food or coffee.