Thanks for the welcome, Deejay!
@Grumpy, in regards to your earlier idea that the Axle Beam may originally have had "just have a pin-projection to slide in the guide", in order to limit the rotational travel of the Axle Beam, I think the function of the nuts on those pins may be to limit the amount of "forward-and-backwards" movement of the front Axle Beam, caused by the push-pull action of the steering tie-rod. I notice when I turn the steering wheel from side to side while stationary, there is a fair amount of lateral force applied to that Axle Beam. Perhaps this also serves to protect excessive wear at the central Bush for the Pivot Bolt?
Meanwhile I have obtained another Evolution 14-32 for parts, and will take a look at its front axle for comparison when I get a chance.
Regards
