Lift spring questions?

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I ended up with a set of lift leaf springs (2 front and 2 rear) that I was told may be for a '67-'72 Chevy 4x4. But, from what little info I've been able to find on the net about springs, the dimensions arent matching up (at least for the front springs....). I don't know anything about lift springs/kits, so thought perhaps someone here could get me pointed in the right direction as to what these springs fit.

Sorry I don't have any way to take and post pics, but did take some measurements to start. Front pair are 2 inches wide, 44 inches eye to eye, 7 leafs. Pin is centered. Rear packs are 52 inches long eye to eye, 2 1/2 inches wide, pin is centered in pack, and 7 leafs.

Any thoughts?

Thanks