When you do the crank, measure under the head of the bolt with a 6" scale. Cranking the bolt 1/10" equals approx. 1/2" lift. Before you measure the lift, drive the truck a few hundred feet and go over some bumps to settle everything into it's new position.
The place you measure at is at the very bottom of the knuckle/spindle, and at the center of the bolt head at the pivot point of the Lower Control Arm (subtract one measurement from the other). For instance, on my truck, the bottom of the knuckle is 8" from the ground. The center of the pivot for the LCA is 12.4". That gives a reading of 4.4". Compare your stock reading with the reading you get after your torsion adjustment to see your "lift".