correct me if i'm wrong, but i think they usually to the shock absorbers as shocks or struts. i've heard both. so you may have ordered too many things. my understanding of things is that the strut or shock has the coil spring over it, which one end is bolted to the top of the wheel well, and the other is attached to the suspension arm which the wheel is on. so go with the kyb adjustables. what kind were the other 4 that you ordered? if you need to sell a set, let me know.