A friend gave me some of the coilovers with the threaded sleeve, and threaded seat. I know that these aren't true coilovers, but they will lower my car. My question is.....How do I know how low I have them set? I'm thinking that if I screw the seat all the way to the bottom, then I am at 4" lowered, and all the way to the top is stock. Am I correct or wrong? Also, what is a good all around drop? I can't afford any new springs, or anything like that.....because I just bought a new motor for my car. Thanks in advance.