The Eibach sportlines on the rear of my 1990 GT hatch are way too low and allowing for no weight transfer. I have a set of stock springs laying around but not sure what they're off of. I can see the numbers on the green factory spring label, does anyone know how to decode these numbers to find out???? I also have a 1993 LX 4 cyl car Im parting out and my friend said to replace my rear Eibach with these and the car will sit a little higher and ride and launch a bit better. Are the stock GT springs different than the 4 cylinder springs?? How do you tell the difference if they are?? What do you guys recommend?? If the springs on my workbench are 4cyl springs theyre going in, if they're not I geuss Im swapping out 2 sets.