OK, I did some research and found some progressive rate and dual-coil springs for coil-overs (and the BAT catalog has an extensive variety of less expensive linear-rate springs with multiple lengths and rates). I have not, however, been able to find out any info on the diameter, free length, and spring rate of the Eibachs that come with the Ground Control kit. I tried calling GC and their lines are always busy. Does anyone have this stat for the linear-rate Eibach spring? And the SVT spring for that matter?
