Hi
im a noob when it comes to suspension which is why im asking
i've got a pair of rear r34 height adjustable coilovers, how do i go about finding out what the spring rate is? brand is "DEED" and they have no tags etc on them. on the springs it says "deed 050"
im asking because i wanna get a pair for the front aswell and just need to know what will work best with these rears
thank you