It must come down before clearing lower control arm. If your upper control arm will not come down low enough if you have a spare jack you can raise the lower control arm slightly. I am sure you can figure it out though. Just pull the ball joint plate thing down and rotate it diagonally slightly.
X2.
An extra jack under the LCA - then wiggle, curse, pull, shove ...
Actually it's not that bad once you lift up on the LCA with the extra jack.