A few months ago, I was dismantling my front suspensioni for rebuilding, intending to just clean and replace ball joints/bushings/rubber... but ALAS.. I found one loop of one of my springs was broken (the bottom loop.. still lying in the bottom of the cup). When I got them out, i also found both springs still had their original 'EY' factory tapes on them, so at least I knew what I needed. I spent a couple of weeks looking .. ordered what was supposed to be the original replacement (MOOG) .. tried two different spring numbers recommended here and in TC.. but neither of them even *looked* like the springs I removed (wrong number of coils, different wire dia etc). When I requested help, Steve Shauger recommended I contact Coil Spring Specialties (Lenexa, KS).. so I did. They do custom springs for just about any application. I sent them my one good original spring, and we had many discussions on the phone and via email over a couple of months. My concerns were that the replacements...
1) had the same number of coil loops (
2) had as close as possible to the same wire thickness and free length (equivalent)
3) Had at least the equivalent spring rate (new 340 lbs/in vs 320 measured on the old one)
4) Sat no higher than my origiinal spring when static loaded in the car - yet to be checked.
Today, I finally received the springs via Fedex. Cost me $209, plus shipping my spring out there, which is more than twice the cost of the *replacement MOOG numbers* via Autozone/Advance/etc, BUT... the springs LOOK like my original spring. See photos of the two new springs flanking the original spring! The only remaining things to do is to assemble the front suspension, reinstall ALL the parts I've removed for cleaning..
... and check the ride height! I'll let you fellas know how it works out. In the meantime, if anyone else wants to duplicate the original EY spring, Coil Spring Specialities has the data now from measuring my spring and producing my new springs.. so it should be lots easier/faster and cheaper for them to pop a couple off for you. OR you can wait to see how mine work out..
PS. I asked them not to paint the springs, so they are bare steel right now. Should I clear coat them? or ??