Trooper,
Great link. I've seen that table before, and it's a good starting point for replacements. But I don't think it's right.
Unless both of my coil springs were changed out at some point, which I highly doubt, the "Concord" dimensions aren't accurate. My wire diameter is .640" or 41/64" (with a coat of paint), not .687" or .656". Just measured both springs again in a dozen places. Also free height is actually slightly longer than 15". Hard to believe after nearly 40 years in use and 200,000 miles they didn't compress but instead elongated.
Probably perfectly fine to use those reference numbers to get replacements, but the MOOG catalogs I could dig up show those springs fitting everything except Eagles. Hornets, Gremlins, Concords, Matadors, Spirits...but not Eagles.