Need help with parts for a 56 Savoy

I am looking to find a rear spring for my brakes on a Savoy. Nobody seems to have one. Are there any places otu there that deal with hard to find parts or anyone know where I can pick one up at? It is the one that looks like an OMEGA (retaining clip) it is about 2 3/4 inches in size. I just got the car and went to replace the shoes and the thing broke on me :banghead: I want to get it driving again soon. Any help would be appreciated. Thanks for your help