I've never done this particular swap, but, as I understand it, there are spacers available to adapt '39 to '48 backing plates to your front spindles. I'm pretty sure the holes will have to be filed out to accept a slightly different bolt pattern. Your '35 front drums/hubs should work? In the rear, '39 to '48 backing plates should bolt to your axle housings and once again, your '35 drums/hubs should work. Richard Lacy of the Early V8 Garage is a regular here and he should be able to set you up with a master cylinder arrangement and anything else you might need.