Wish I read this before I ordered the 22mm. What did you end up using to tighten the 19mm nut? I had already put the assembled shocks back on the car in hopes that the weight would compress the spring and let me tighten the nut. That didn't work at all lol haven't really had much time to tinker...
I'll give it another shot tomorrow when I install the rear. I'm using a 1/2" Dewalt 18v impact gun which was enough to get everything else unbolted and bolted.