[63 & 64 Bowties]

cool project. I can't wait to see this one done.
It sounds like you've got a lot of experience with the whole tandem thing, but just a quick question from an "old truck driver," you will have a way to take the transfer case out of gear, right? I just know from experience driving the big trucks on dry pavement with the differential lock engaged is like driving a 4x4 on pavement with 4wd engaged.
Very nice work you're doing. I'm subscribed to this one.