You can get replacement stock springs from autozone, atleast you could afew years ago when I picked some up, www.rockauto.com has them, also the 69 - 73 mustang springs are sapposed to work as well, I've also heard atleast one person on here used '88 mustang springs and cut them to work (foxbody)...
If You Need Them?? Hi, Vanishing Point Racing who you can easily find on the web stocks and height modifies for your use a wide variety of different diameter coil springs with many different spring compression rates. I do not know the pricing on these. But VPR are nice people, who know their business. David