I have used a high lift to lift my jeep when I did my lift. I lifted as close as possible to the tire on the rock rails. Lifted the jeep about 6 inches on one side and placed a jack stand under the frame and then did the same thing on the other side. Then I unbolted the shock/axle side trackbar(when I had the stock front drive shaft I also had to take it off to get full droop). Note: the tires were still on the ground. Jacked up the axle and then removed the wheels and tires and dropped the axle down which let the springs pretty much fall out. The axle was probably sitting 2" off of the ground. If using a hi-lift inspect it and make sure it's in good working order and lubed up. It is as dangerous as negligent and ignorant you want to be.