Maybe something changed with the lower shock mounts in 2019. Of course SoCal had to use washers, too. Not sure what year his is. The top mounts fit perfectly, no spacers needed. At any rate, I made 6 spacers and got the shocks installed. Set them at the stock ride height and adjusted the comp and rebound for softer "around town" ride. WAY better than the stock shocks. Heck, most of the rattles and clunks I used to hear when I went over bumps have even stopped!
SZurlo mine is a 2016. Just checking but did you swap the spacers as you are actually installing the shock upside down?