And i dont hink you need calvert springs to make it work, they are just single leafs witch help unsprung weight.
Aldough i believe you need a "weak" spring with alot of wrap up to make it work good.




I just traded out my "weak" original 6 cylinder springs for the Cal-Trac mono's and I have to say that the car 60fts slightly better but it is far more consistent at this point (1.397/1.385/1.396). When I weighed the mono's against the stock springs it was just a few pounds lighter per side. As much as I hated shelling out the $400, I will have to say that the monos were a good investment. With the whole set-up together Cal-trac, mono, ranchos and 90/10's I feel confident in making adjustments and the car is working better now than ever. I see a consistent 1.35 60ft in my future.

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Last edited by clovis; 06/07/12 10:56 PM.

'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119

"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"