Rear brake drum question

I just put the shorter of the B body rears in my dart. I transferred the 8/14 backing plates and brakes from that diff onto the B body diff, only because they were all new months ago. I reused the 8/14 brake drums since they were used on the 8/14. I have new drums sitting in the boxes for the B body diff I had. Both drums B body ,8/34 and the 8/14 are ten inch. So my question does anyone know if these new drums would work with the 8/14 backing plates and brakes. I slid one drum on and doesn't appear to be any interference or anything but still a little skeptical on using the B body drums. Any help with this would be great thanks.