11" rear drum brakes.

First thanks all for the replies. I have a set of 11"x2.5" backing plates and they came with non-finned drums. These clear my 14" stock Mopar rims with no problems. My problem is the non-finned drums are not being made anymore (at least I have been unable to find them) and I want to put a new set of drums on when I use them for a conversion to 4.5"BC axles. Only the finned type drums are available and have a larger outside diameter and was asking if any one has tried 14" rims with the finned 11"drums. 72bluNblu has it right and if you're rally 14" fit I bet mine will also.