SO my buddy and I tackled this last night. We put in a 2013 Autospring 1.5 into a 2014. IT CAN BE DONE. You need a huge pry bar to pull the struts out of the LCA. Disconnect everything but the axle shaft and LCA. pry up on the bottom of the strut and it WILL pop out. Then take the nuts from the lower strut mount, reverse them and tighten them until they are flush with tip of bolt. Place strut sideways in vise, at the lower mount point, and close vise onto the head of the stud in the lower strut mount. Then back vise of 1/4 turn. This will allow the stud to be drifted out by hitting the nut with a good size hammer, while the lower strut mount is anviled on the vise jaws. Place a 1x4 in-between the springs to balance the strut horizontally, or have your buddy hold it level. Then smack the nut until you drift the stud out. Repeat for other stud. After the studs were out, I put one end of the lower strut mount back in the vise and twisted the mount the opposite direction of angle of what it is at stock. This is because the leveling kit requires you to rotate the shock 180° upon reinstall. There is a twist in the mount if you hold strut vertical. Just reverse it, not rocket science.
This will allow you to install a 1.5" leveling kit in a 2014.
You will again have to pry on LCA to get strut and puck (already installed on top) back in. Be careful of axle boot. Then place studs back into holes. Twist them to align splines and tap them a couple times real good with hammer and punch to set the splines partially back into place. This prevents stud from twisting when you tighten the nut back on. Now here I tightened the nuts by hand with a long handled socket wrench because I didn't want to spin the studs with an impact. To each their own.
This procedure prevents you from having to take off the LCA. You still have to get an alignment, but not the next day. We also adjusted out the tow 3/16" for good measure before having an alignment.
Now I don't know if this will work for a 2" or larger leveling kit. But it worked well for us in a pinch.
Expect 2+ hours for one side, and 45 minutes for the other due to learning curve. DO ONE SIDE AT A TIME.
Hope this helps guys!!
beer10t