How can I tell what kind of springs my car has?
 

I purchases a 90 Mustang GT and it has quite a few upgrades. I am wanting to get new springs so I don't bottom out in the rear and hopfully get a better all around ride on my 17in wheels. How can I tell what kind of springs it has? By color? They are black! I want to get some steeda sport springs but want to make sure thats not what I have already. Can anyone help?
http://members.mustangworks.com/jpumpkinn/