sorrry i wasnt clear...i used adjustable shackles with no added leaves in the rear suspension...adjustable shackles with your 3 pack add a leaf would be even taller...i wasnt trying to recommend them to you, just explain how i got the leveled look
adjustable shackles would do the trick WITHOUT the ADDED LEAVES...from where you are...I would reccomend just removing leaves until you get the height you want. Your front is maxed out...revolvers are the best shackles around...I don't have them so I don't know how much lift you have...I am going by 4x4 parts product description...
but you want to keep your revolvers....and remove leaves from the add a leaf pack. revolvers add articulation where as leaf packs take it away...keep the revolvers and remove leaves from the back to get your height...that is what i would do although the 3 pack AAL is not designed for removing some...you may have to experiment with which leaves to remove, but if your UCAs are at the maximum lift with 1/2" bump stop gap, you have no choice but to a) lower the rear to match or b) raise the front and have bad tire wear and a rough ride