74 Dart 360 Sport

Right. But they use a 3.25" axle tube, can't mount a vented rotor brake setup and the diff is offset and too short on the short side for my use. My point was only that I doubt anyone will find a CV axle in a pick and pull with a ratio that works for anyone that doesn't have a 8HP.

My ultimate cheap swap idea was to pull a CV axle at a pull and save, rip the stock ring, pinion and carrier out of it and "install" a better gear ratio and locker from an Explorer before taking it too the counter. Really long day, and is dependent on both axles being available in the yard at the same time. Worse case, I would buy both at separate times and swap the parts at home.
Makes sense to get everything you need in one stop, if possible.