stole this image from a member on here, sorry.

whats the extra spring for (the one circled) and can you buy these seperate. say if u wanted to add a set on your coilovers (sleeves, not full coilovers) that dont have them.

 

those are called "helper" springs. supposedly they keep pressure on the springs to keep them in place. when the suspension goes to full droop (suspension is totally uncompressed), these helper springs keep the springs from coming out of the top hat (like they are in the pic shown).

 

thanks for the info. a guy PMed me, said he could get them, he said they were pretty expencive tho. if anyone was interested in price.