The LCAs stay put. A "strut" spring compressor will work, HOWEVER it is a pain in the a$$. It is much easier to disconnect the track bar, drag link and maybe one end of the shocks. It's just a couple of bolts and will save lots of time, frustration and you won't have to worry about all that kinetic energy.
How would I know this? LOL! I too tried the easy way on my '01, although year has little of nothing to do with it. The next time I remembered, "the slow way is the fast way."