Need Help with Brakes!!!

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Im done! I cant take it anymore. Ive ordered hundreds of dollars of parts from companies that assured me they were correct for my truck and they are all wrong. The truck is a 67 GMC 3/4 ton with a Dana 60 rear end and leaf springs. Can anyone help me find a supplier that can get me the right stuff? Im done with LMC.

I have attached a photo of my brakes. There is only one spring and pin holding each shoe on the backing plate that I think if they would just open the box and check that would be a clue as to if it is the correct spring kit.

I need a spring kit, automatic adjuster, and the pins that go into the wheel cylinder and push against the shoes.

At a minimum I need the one spring that goes onto the spreader bar. Its the bluish gray spring in the pic on the right shoe. Its kind of oval shaped. If anyone has this spring and is willing to part with it please let me know. My driver side one rusted to pieces.

Any help would be appreciated.