I've removed 12 studs already, I tried with a bearing puller tool from ebay but that was all but useless - I had to remove the marked red bit so I could get the correct angle:
After failing miserably I bit the bullet. The rears were easy to get off as I hadn't yet tightened the hub nut (will do that last thing), the hubs came straight off. The front is more difficult, I ended up removing the whole dummy strut, I need to get a bearing puller because the top ball joint is still connected. After a couple of days of penetration fluid the rear studs came out quite easily, swift blow with the hammer.
The front was slightly harder so a change of tactic needed:
22mm socket behind the hub, tightened the vice and each one popped out with relative ease. Apart from one, which took me three hours to remove. I won in the end:
After cutting the stud out and griding as close as I could to the hub, it finally gave up! One more to do tomorrow and then I can wind the new ones in. I suspect they too are going to be difficult, I will have to be careful as I really don't want to damage the threads. I'll do some research but planning on both freezing the studs and heating up the hub with a blow torch before winding them in with nut + washers. We shall see, Ill check rhocar forum.