Shackles

So im replacing the leaf springs on my 1974 dart and i go to look under it (all original parts on the car) and its a horrible scene. all of the shackles are gone. the fronts are gone (rot) and the rear shackles the bolts have been fused onto the shackles to im going to replace them too. Where can i get front and rear shackles? autozone and advanced have nothing on their website. neither does napa or summit as ive seen. maybe im blind. But any ideas where i can get front and rear shackles? thanks.


Edit: the shackle mounts. front leaf spring mounts i think is what they are. same with the rear