Success! Nothing like the sound of separating ball joint in the afternoon chill.
see photo of how i did it but it amounts to using the cheapo threaded splitter in combination with the hydraulic jack under it and the hammer head stuffed between arm and sub frame with pressure on from spring. The outer joint was back in the hub to allow the spring to provide some down force pivot in the arm.
First place jack under outer joint to lift hub up and provide room to insert splitter then put hammer head in for pivot. Tension up the splitter and release jack moving it to under the splitter where it presses on the 22mm arm nut. Then jack up as far as almost starting to lift the car off the stands then add more tension on the splitter using foot on spanner as to much resistance for hand alone with threads of splitter very greasy, bit more jack keeping eye on stands for movement and then crack it separates
.
Just dashed in to cancel the splitters ordered yay.
Light fails now so i get to rest before refitting the new arm n bush. On a side note the moog bush fitted less than a year ago is properly and unexpectedly mashed up see below.
