Tried installing this last night on a hoist. Had an extra set of hands as well, 1 massive pry bar (4 foot) and a smaller one (2 foot). I could not for the life of me get the upper BJ loose, even after everything else was either loose or off... I installed the 2" rc leveling blocks with both bolts underside and nuts on top. No rub or hitting. Will see how it goes? If its an issue I will remove it and purchase top struts spacers instead. Had to do a bunch of other work, replace an axle, steering rack boot was torn on same side, replace brake pads, rotors, and calipers.
For future reference... I would rather loosen the sway bar end links and remove the whole strut than to put another one of these kits in again. I had the strut off in 2 minutes. 3 bolts on top with an air gun and two bolts on bottom of strut... slide it out done. Install a top strut spacer and use a pry bar to line up the bottom bolts again and your headache is done... probably 10 minutes a side.
Its only temporary as I'm waiting on release of bilsten 6112 coilovers and a proper UCA with uniball.