[ICON Jon]

There isn't enough consistency from one truck to the next in order to say with certainty what your droop would be after adding 4 turns. The best thing to do is measure from the fender to a fixed point on the tire while it's sitting on the ground, jack up the truck and measure again. The difference between the two is droop. Add the 4 turns, drive around the block to settle it in, then measure again; first on the ground, then in the air.

Keep in mind that the relationship between pre-load on the shock and lift at the wheel is not a direct 1:1 ratio because of where the shock is located on the lower arm. Again...that will depend on the weight of the truck and condition of the springs, but you might expect 1" of additional pre-load to gain anywhere from 2.5" to 3" at the wheel. You'll see this in the difference between the first measurement on the ground, and the second measurement on the ground after adding pre-load.