You guys don't have to shave the shock towers to install these. I installed mine with the spacers and bolts provided, may not necessarily be per exact instruction, but mine do not rub at all.
Front with .090" black spacer per instruction:
Rear not per instruction, 1 .030" silver spacer top on long mounting stub (don't really need it, am going to shorten up the gap) and 1 .090" black spacer bottom. Barely, but still clears the turnbuckle with C hub: