7 leaf spring pack?

We have a parts duster (74 i think /6 3 on the tree no a/c or pwr anything) I was under it pulling the fuel tank pickup so I can replace the small fuel line with 1/2in for my duster I'm putting together and just swap it out when I'm ready. Anyways I was under there and looked at the leaf springs and there's 7 leaves on each side? Is this a towing option on a a-body or do you think someone put them on it? Im gonna swipe them for my duster if they arent shot. Anybody ever see a set?and are they worth using?
Author: admin