The springs in both mine and my dads cars are just plain old stock worn out leafs. Both sets have another leaf added just to get the ride height looking good. For the added leaf, we just took an old leaf pack, removed the main leaf and cut the ends off and added them into the leafs in the cars. Worked out perfect, and sat with a nice stance. I've heard that using S/S springs and cal tracs together is a bad thing, I believe they counter act each other, but not 100% sure, I'd have to ask my dad, he's the chassis guy, not me.
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