Listen this may sound like a newb question but what is the differnce bewtween all of these things and what is their function in the suspension. In lamens terms since im not technical at all.

Shocks: A dampening device that prevents a vehicles springs (the actual weight carrying members) from oscillating. Basically a fancy oil pump that dissipates kinetic energy (the moving spring) into heat. Mostly used on the rear axle of modern suspensions mounted right next the the spring.

Strut: Similiar to a simple shock except it carries some percentage of the vehicles weight as well. Kind of like a combination of a shock and a spring all in one part. Used on the front suspension usually.

Coil-Over: A user adjustable suspension system. Coil-overs are installed in place of shocks and have an air valve on them that allow the user to change the suspension ride height and feel. "Air-Shocks"

geee thanx. Helps me out alot.

actually a strut/spring setup like on the front of our cars is referred to as a coilover as well.

Its actually the same thing as an aftermarket coilover setup without the adjustibility