If someone wanted 2.5" drums and even more room they also make a shallower 2.5" drum. I have a single wheel 14 bolt that came with these these drums. Would require spacer or new mounting flange in your case.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-