Well... this is what I did:
1. Remove the castellated nut that connects the lower control arm ball joint to the steering knuckle.
2. Loosen the TOP castellated nut that connects the upper control arm ball joint to the steering knuckle.
3. Using a heavy hammer and a block of wood, hit the lower control arm --- the upper steering knuckle connection should break away and drop to lay on top of the loosened nut.
4. Using a floor jack and the same block of wood, jack up the bottom of the lower control arm and lift to relieve the pressure on the sterring knuckle.
5. Remove the TOP castellated nut, and then SLOWLY lower the floor jack -- thus lowering the control arm -- and also the spring.
This is how I removed both of my coil springs... not sure what the books say.
In retrospect, I could have (or maybe should have!) also used a chain to wrap around the coil spring for extra safety.
Hope helpful.
