you dont have to touch the ball joints, but for a bit more drop, you can flip the top ball joint, understanding the word flip, just means taking it from its location and placing it under the top wish bone, and the wind the torsion bars up 8 turns, clock wise, if you are using the 2" spaces for the back, it will take about an hour, ish.
flying solo, weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee