Sorry to wake this old thread up but why not just;
1. Jack up the front end
2. Take off the wheel
3. Place a floor jack under the rotor
4. Take top nut off of shock to allow the lower control arm to do all of the work for you.
Seems like all of the tension would be taken out of the torsion bar for both R&R with the lower control arm past full extension..
If not, wouldn't it still allow for less tension on the Clamp of choice you're using? I know I'm overthinking it a little, adding some labor time with the extra steps too but seems safer, cheaper, and more logical then using so much FORCE
Ill let you know how it turns out..