On a fiesta 06 plate does the bottom ball joint on the strut wishbone just knock out?? or have ford in their shite wisdom made it screw in and then put a nut on it??
up to my backside in snow and water trtying to fit a coil spring and I can't even get the thing to bits yet Argh

Early Foosties used a pinch bolt --- remove the pinch bolt -- knock a scredriver into the the split in the bottom of thre strut to spread it and the ball joint pin pops out when you hit or lever the wishbone.

Only other way ball joints are loacated is a taper and nut --- for those you usually need a ball joint splitter --- simple forked wedge splitters are easiest and quickest but damaged the rubber gaitor.

Last one I did was a straight pin with a groove in it. You had to remove the bolt to get the arm down to remove it. Get a bar and wedge it over the wishbone and under the body, someone to stand on it to force wishbone down then pull the bottom of the strut out.

got it
just corrosion it knocks out.
driveshaft nuts a bit of a barsteward as well