There is no possible way of doing it! You either struck lucky and the bolts undid for you or what i dont know.

NONE of the bolts, on the wishbone, the rear beam, anti roll bar or the rear wishbone will undo, they either round off, snap, or seize solid in their bushes, i asked you which bolt and if you had a picture of what and how you did it but dont think you replied again?

Only way is to cut the wishbone bolts off, and thats how garages does it ive heard.

Im intrigued as to how you did it though, clarify a little?