had a clunking/knocking noise, most noticable at slow speeds over the last few weeks, seems more obvious when slowing to a stop, or slightl uneven roads, more obvious when going straight rather than cornering, had a look under car and lower control arm bushs (rear bush) were shot, and the whole arm was rattling around in the bush. changed them, and car feels much much tighter now, so pleased i done that, however the noise remains, having a closer inpection, i think the noise is coming from the column that comes from the steering wheel and down the side of the engine, is this whats known as the steering union joint? if i physically hold it, i can push it back and forward, and it makes a noticable clunk as i do this. how solid is this supposed to be?
looking at it there is a torx bolt top and bottom, so 'looks' easy enough to change, but is it that, or is it pointing to something else?
thanks in advance