Going to work on my shock tower (69 Mach) and need to undo the 2 upper A arm nuts on the tower and move it away from the tower. Will the arm move enough to pull the studs/bolts out of the tower and swing it out of the way without undoing the ball joint? If I have to undo the joint, I've heard you can pop it apart with hammer blows without using a pickle fork. What was the trick to doing this? Don't want to damage the rubber boot with the fork. Hopefully I won't have to undo it. Thanks.