1966 Disc Brake Conversion Questions

What about with Rallyes? I have 5x4" :)
you mean like these? I'm running the newer style of the scarebird conversion that fit's either 9" or 10" spindles
and they are 14" rims (don't know howe wide they are though) BBP I'm thinking that the only difference is in the BBP/SBP spacing but someone on here must be better versed in the differences between BBP vs SBP rallies rims. and if there is a width difference between them
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it somes with the adapters and spacer ring to center the rotor.(spacer not shown) you get to buy rotors ,calipers/pads, hoses and the choice of master cylinder at your local auto parts store.
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here it is with the drum removed by drilling the back of the studs off and driving it through to the front "saving the drum for someone else" if they want it.
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here it is mocked up for the fit to see how things worked and to see if any clearancing needed to be done. 1 side did have to be filed down to clear the adapter..
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this is the point where you have to make up your mind if you want to go BBP or stay SBP ( drill BBP and do it once. do it SBP and you'll have to drill the rotors each time you replace them)
and no the spacer isn't in it yet since I have not drilled them in this picture