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Leaf spring questions.
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[QUOTE="psduser1, post: 1164032, member: 735"] Generally, weight rating. That will also affect ride height, spring rate, and so on. As far as matching x codes, I'd guess b codes and a roughly 3" block to keep ride height consistent. I used u-codes up front, with b codes and a two inch block. U codesign being the next lighter spring, I think 4800 lbs, for the pair. Google superduty spring codes, or call ct performance, goes by obswiz on here. Cary knows his stuff, excellent to deal with! [/QUOTE]
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