Are the rear drum anchor bolts the same as the front?

[Jeff_Fall_City]

I'm in the early stages of a frame off restoration and I screwed up and tossed my rear backing plates. I was able to find replacement plates, but they did not include the Anchor bolts. I'm putting discs on the front, and I saved my front end parts. Do any of you know if the rear anchor bolts are the same size as the front? I just took them off, but I don't have anything to compare them to. If they aren't - do any of you know where I could find some replacements for the rear? I appreciate any and all responses. Also - I've found a C20 and a C30 at a local junk yard, but I'm not sure if those will fit either... My truck is a 65', with a 12 bolt rear end. Thanks - Jeff K. Fall City, WA