Ride height

Your measuring too far out on the adjuster blade. You need to measure at the low point where the pivot bushing is installed. The "blade" is the part in the center of the control arm the adjusting bolt pushes. If you measure at the inboard end you'll see its lower than the part the bolt pushes. Also the lower ball joint for the most part stays constant so once you determine how far it is add the 1 5/8 to that and that should get you real close to where the low point of the blade needs to be.