LXtasy said:
so whats the difference than? i really like to know
Shocks and struts are dampers. They control the springs. Imagine a car without shocks and struts, only springs. (now, obviously this wouldn't work on the front of our cars because of the nature of the design of a modified mcpherson strut assembly. So really just imagine the rear) The ride would be uncontrolable bouncy. And that same car would still have the same ride height w/o the shocks as it did with them.
If you have every played with a shock/strut, you know that they will only compress/rebound so fast. This is the measure that tells you what kind of a spring rate that certain shock/strut can control. The stiffer the shock/strut is valved, the higher spring rate it can handle. Of course there are other variables that go into this, but that is just a quick overview.