The (2) holes shown are the holes you will need to line your skid holes up to on each side of the shock, making (4) total.
Take the provided hardware and insert it through the skid into the holes stated in the previous step on each side of the skid. There is a slot in the skid to adjust height.
Once all (4) of your bolts are started into the nut tabs and the height is adjusted, use a 1/2" wrench and tighten them all down to finish your install.